Random things I don't understand about America

I've been thinking about writing this list for a while, just to see if anyone else is confused as me. It is also a bit tongue-in-cheek - for while I could easily write a list of things that I don't understand and also make me very cross, it would be a bit pointless - before any of my American friends get all upset...

Just a few for starters, and sure to be added to over time!

1. The word "winningest". Is that even a word? I'm pretty sure the Oxford English Dictionary would be a bit upset about it - but as you have to pay to look at it online, I'm only guessing. Either way, it just doesn't sound right.

2. Road directions. My phone's satnav tells me to go North on a certain road. That's fine, except when you have no idea which direction north is. Yes, I could look at the sun, but I thought technology had advanced a bit...

3. Why can't you include the sales tax/VAT in the price in the first place?

4. How the appropriate response to "thank you"is, in a lot of places, no longer "you're welcome" or similar, but the noise "uh huh". Sometimes it comes across genuine, other times I think the cashier secretly wants to kill me.

To be continued...!