Many things. To say some...Billboards with lawyers advertising for things like demands after accidents. Like dozens one after another on the road.
So much sugar in everything. Last time I was there had to throw to the bin a yogurt. Was so sweet It was awful. Prices of "fresh" food.
Tips for everything. Going to a restaurant and have to tip like 20% of the bill, or even more, is crazy.
Wáter consumtion. Like big golf camps completely green in the middle of a desert (Vegas). When asked about It, people there just answered "no problem, we have the Hoover Dam for that".
Lack of public transport outside four or five big cities. And that just walking on the streets in some places is very strange fot the people living there. I was asked ten years ago in Palo Alto if I was Russian because I was not driving, just walking on the street!!
I became curious if you had been in Vegas when you mentioned billboards with lawyers. That's a Las Vegas peculiarity (although it may be a peculiarity elsewhere). Where I live in the States has no billboards and it's great.
Yes, twice a couple of years ago. I also have been to other cities but several years ago and I thought maybe it was a recent popular thing. And yes, nearly all the way from the airport to the hotel the roads were flanked with that kind of billboards.