Postal Arbitrage

walzr.com

353 points by The28thDuck 13 hours ago


_trampeltier - 12 hours ago

This story comes to my mind.

A pizzeria owner made money buying his own $24 pizzas from DoorDash for $16

https://www.theverge.com/2020/5/18/21262316/doordash-pizza-p...

sudobash1 - 12 hours ago

I feel I should point out that USPS has a lower rate for postcards (currently $0.61), so the threshold might be a bit lower.

I know that this is tongue-in-cheek and would be pretty funny to receive, but it isn't an apples-to-apples comparison. The experience of getting a little message printed on receipt paper is nothing like the experience of receiving a note or card in the mail. Through the mail you receive something physically from someone with their handwriting and some personality to it. Getting the Amazon message is more like printing out a text message on crummy paper.

Also, I don't have Prime, so it definitely isn't cost competitive for me anyway.

netsharc - 12 hours ago

Ah, luckily the climate doesn't mind that oil was extracted, a phone case was produced out of it, shipped from China, to end up not even being used but just as a "greeting card".

Why yes, I am fun at parties.

graup - 11 hours ago

Last time I checked (a few years ago), it was cheaper to send letters and small packages from South Korea to Germany than from Germany to Germany. The delay was also not that big (maybe 1-2 weeks instead of 3-5 days). I already envisioned an arbitrage business for this: a simple page where people upload their non-urgent letters as PDFs, and I just print and mail them from Korea.

johnfn - 11 hours ago

Somewhat off-topic, but when I click on "Case-Mate - Case for 2009 LG Xenon - Marsala"[1], the "About this item" section simply states:

About this item

- Do

- Not

- Buy

- This

- Product

What on earth is going on here?

[1]: https://www.amazon.com/dp/B09D51KNQM

mystifyingpoi - 11 hours ago

In Poland, OLX (basically equivalent eBay) commonly has promotional campaigns, where you can buy something from a select category with 1 PLN shipping to box machine (around $0.30).

So people figured out, that you can abuse it to send anything to anyone in the country. Just create a fake listing for 1 PLN, let the receiver "buy" it (there is some extra service fee, but like $1) and there you go - probably the cheapest shipping possible, much cheaper than regular ~$5-7 box machine package.

bombcar - 12 hours ago

I've used something like this list to get "over the hump" for $35 to reach free shipping without prime.

It's horribly annoying to have a product that is $34.99 and you want it, but it'll cost shipping unless you get the damn Volkswagen screw; and then Amazon ships them individually anyway.

systemerror - 13 hours ago

Don't give money to amazon that is better spent on an amazingly efficient postal service. Amazon is subsidized by imaginary money until they put all their competition out of business(including USPS).

pruetj - 10 hours ago

Funny seeing this. I've been working on a site to allow people to send a letter as cheaply and conveniently as possible. I actually think letters (physical) are a great way to make an impression, often times much more so than an email. Had never considered sending an actual object lol.

At current scale (which is very small), the cheapest I can get it down to without losing money is $1.55 per letter (postage, paper, print, envelope, stripe fees, misc. hosting fees, etc.). Sadly, I have no way to compete with a $0.25 lime!

If you're curious, https://mappymail.com

jackfranklyn - 9 hours ago

The DoorDash pizza arbitrage comparison is apt. Both cases expose the same fundamental thing: venture-subsidised pricing creates artificial market conditions that clever people will exploit.

What I find interesting is how long these windows stay open. You'd think someone at Stamps.com or UPS would notice the pricing anomaly, but large organisations are often too siloed. The team setting international rates probably doesn't talk to whoever monitors small parcel economics.

The author mentions making a few hundred dollars - but the real question is scalability. At what volume does this become attractive enough for the postal services to close the loophole? There's probably a sweet spot between "not worth their attention" and "actually profitable."

yujzgzc - 3 hours ago

It's not arbitrage until you can make money by selling something that costs you less than what you bought it for. What it is is bundled product (item + shipping) being priced lower than just one of the elements in the bundle (shipping) therefore making a case that one might as well always buy the bundle.

sambaumann - 12 hours ago

Turns out, at least in my area, for the grocery items you need to buy at least $25 worth to qualify for the free shipping.

TheJoeMan - 11 hours ago

To the author, would you consider changing the “key photo”? I sent the weblink to a friend, and the key photo in iMessage is the pregnancy test and they got the wrong impression about the site/prank. Pick the lemon or can of beans perhaps?

dawnerd - 6 hours ago

This needs to be updated to check if an item is just local delivery. Most of the items are not available for delivery unless you live close to a fresh.

munificent - 13 hours ago

I would delight to receive birthday cards in Maruchan Ramen form.

stevage - 3 hours ago

There are some of us going to great lengths to reduce the amount of plastic we consume, the crap we buy and then throw out, distances travelled on our behalf.

And then there are these people. Sending a pregnancy test to their grandma. What a hoot!

- 3 hours ago
[deleted]
jervant - 9 hours ago

There are also things on eBay with a starting price of less than a dollar with free shipping that never get bids. I "won" two auctions like this the other week for brand new USB-C cables, each of them costing me 13 cents shipped.

I have no idea why sellers would do this with eBay fees and USPS small package shipping costing well over 13 cents.

cameronehrlich - 2 hours ago

Send a $0.01 check with your bank’s Bill Pay feature, and write your message in the memo.

notherhack - 9 hours ago

The lowest I found is two clip-on CAT5e cable termination jacks for $0.80 + 0.08 tax. Available in a rainbow of colors and shipped free to Seattle by Sunday if you order in the next 10 hours. https://www.amazon.com/dp/B08T63ST97

Or 3.5oz filet mignon flavor dog food for $0.84+tax with FREE two day delivery. https://www.amazon.com//dp/B07VBFLCKT

Beat that!

euroderf - 3 hours ago

As an ex-pat, I'm really surprised by the pervasiveness of Amazon in the US. I guess if you wanted to quickly convert the US economy to market socialism, the first step might be to nationalize Amazon, fix the treatment of its workers, fix the IPR-related crap, electrify all of its transport, and then base the country's consumer economy (of non-perishables, for simplicity) around the resultant post-Amazonian logistics spiderweb. "Now with delivery drones on land, sea, and air!"

babelfish - 13 hours ago

Riley Walz is easily one of the most creative people in tech today.

keepamovin - 3 hours ago

This is beautiful. Thank you for this! Beautifully execute, beautiful idea :)

crazygringo - 8 hours ago

I get the point, but this seems pretty out of date. Seems like it needs a [2025] (?) at least.

A couple of these are still valid with Prime, but most of them are Amazon Fresh items ($9.95 service fee for orders under $50), or out of stock, or the price is now way more.

cadamsdotcom - 8 hours ago

Tempted to start paying cash to mates to drive us to and from the airport. We have to pay for the ride either way - may as well put it in a friend’s pocket.

Tempted to vibecode a little tool to manage ride requests..

blauditore - 11 hours ago

I'm super surprised there is still free shipping for small things. In (some) other parts of the world, they will charge significant delivery fürs for anything below $50 or so. It basically changed during Covid, and since every shop is now doing it, there's no competition on that.

focusedone - 9 hours ago

All of these items appear to have received the HN hug of death. They're all showing as unavailable for me, who just wanted to drop a friendly lime hello to a friend across town.

bee_rider - 13 hours ago

A cheaper option (if we’re going to do away with the restriction that the post card should be sent by the sender) would be for the recipient to hook their printer up to the network, and just send bits.

It is better, actually, you can even scan a real hand written post card.

kazinator - 11 hours ago

Has this person tried it?

Doesn't Amazon shipping have to go to the billing address on the credit card?

Being able to purchase on a credit card and have it sent anywhere makes it that much easier to use stolen credit cards.

kazinator - 11 hours ago

Why stick to strictly under $78? Something that costs $2 with free shipping has a built in $0.78 discount if you consider its free postcard function.

JSR_FDED - 6 hours ago

There’s an even better way to send an actual letter for free.

Simply switch the destination address on the envelope with the sender address, and drop it in the mailbox.

When then post office returns the letter to sender because of insufficient postage it will have delivered the letter for you.

ekropotin - 13 hours ago

But the cost of Amazon Prime have to be factored in as well

Jill_the_Pill - 6 hours ago

How much did they pay to have Prime? Have to add that in.

scottmcdot - 12 hours ago

Is there a simple way to search for everything and order by price descending? I'm in Australia so those items aren't much use.

- 10 hours ago
[deleted]
gowld - 10 hours ago

Debunked in the first click:

$0.25 - Lime - Amazon Fresh -FREE 2-hour delivery on orders over *$100*

Other products have similar shipping restrictions, or the prices are higher than claimed.

Also, most of the cheapest products (at least before tariff effects kicked in) don't allow customized messages that postcards allow, for obvious reasons.

ada1981 - 3 hours ago

The lime is .25 but the s&h is 2.99 even with Prime; and tax too.

Prime seems to only offer free shipping if it’s over $25?

languagehacker - 13 hours ago

Isn't postal arbitrage how the original Ponzi scheme started?

sanex - 12 hours ago

Just sent my friend a bag of gravy mix, thank you!

- 10 hours ago
[deleted]
einpoklum - 10 hours ago

> You're not only saving money.

That's right, you're also cementing Amazon's control of the US economy. Both by doing more business there, and by spending time on that site which will lead to you doing even more of your business there. Not to mention having to be an "Amazon Prime" person to begin with.

This may sound weird to some, but - you should really avoid using Amazon where possible.

ck2 - 10 hours ago

A more recent question I have is how Amazon is skipping DeMinimis fees which are now massive on 50 cent or $1 items from their "Amazon Haul" which come from overseas

It arrives in a few weeks by Amazon's own carriers, not USPS/UPS/FedEx

Who is paying the $80 DeMinimis fee on the $1 cable I got last week from China?

reader9274 - 6 hours ago

What a waste

m-hodges - 12 hours ago

lol everyone in the comments is taking this way too seriously

deviation - 12 hours ago

Here in Ireland, a stamp is 1.85eur.

So. Many. Possibilities.

dheera - 7 hours ago

I mean, you just gave Amazon free advertising, which is kinda what they probably were looking for.

NedF - an hour ago

[dead]

chatmasta - 11 hours ago

This is just being rude to delivery drivers.

crumpled - 11 hours ago

I can almost guarantee that everyone mentioned in that blog post is a habitual Amazon user. They're all renewing Prime each year at full price and making a ton of regular purchases. The family has even turned on the FOMO by making Prime a family social network with social pressure to stay. I see it as a self-own, personally.