1. Hours of operation
Most of anything you want in the US is available 24/7: Pharmacies, gas, supermarkets, restaurants, large stores such as Walmart or CVS, coffee joints, food delivery, and more. And although few of us probably go grocery shopping at 3am, it is handy to know that you can purchase a pint of milk at the last minute when you’ve run out. In France you get used to the hours of operation (few things open on Sunday, relatively early closing hours during the week; sometimes locations closed at lunchtime).