Gas stations are interesting here.

Here in Alberta, it's the law that you need to pay before you pump[0]. If you're at a modern pump you insert your card, it does a preauth for some amount (you can select common amounts, like $20 of fuel, or "fill up" which is like $125 or $250 depending on the station), then when you're done it does a purchase for the exact amount.

If you're not at a modern pump, or you're paying cash, you have to go into the store, prepay for something that you think will fill your tank, fill your car, then go back into the store and get your change.

[0] https://calgary.ctvnews.ca/station-owners-and-gas-and-dash-v...

I added some gas in Frenchglen, Oregon. Population 11. You went into the store, told the clerk (owner in this case, I'm sure) that you wanted gas, she turned on the pump, then you took a photo with your phone and took it back to her so she could charge you. $6.75/gallon, which was about $2 more than in Burns (population 2766).

She didn't have any problem taking a chipped card but I imagine there are self-serve places that can't. It was only in 2018 that Oregon allowed self-serve in counties with less than 40,000 people. 17 of the 36 counties qualify.

The advice I've seen with credit cards seems to be "always tap if you can" since that's not subject to skimming or stealing a PIN.

There are not many anymore without a CHIP reader, because VISA and Mastercard FINALLY stopped the delay of shifting liability for all fraud to the individual gas station in summer 2021.

USPS delivers to them, guaranteed