Outdated "manners" you'd like to see go away
1. Depends -- I don't think it's a big deal if my elbows touch the table, but I hate when people prop themselves up on their elbows on the table. It's a very caveman-ish look.
2. Unless I'm on a date, I typically don't unless it's someone with their hands full or they're no more than three steps behind me. And if you're a dude, you can open your own damn door unless you have a bunch of stuff you're carrying or your pushing a hand truck or something.
3. I'll continue to thank people for providing me a service, even if I am paying for it and they are paid for it. Sometimes those little things matter.
4. I make eleventy-billion dollars a year. How much do you make?