Agree with everything here(most of 'em are pretty universal, in my book), however, I'd like to add a little to Number 10, if you guys don't mind.
You're leaving the store(the 7-11 let's say), and as you swing the door out you spot somebody within say 5 feet of the door walking towards it in order to enter the store, and you hold it open for them, they say "thank you", and you say "you're welcome".
Oh, and this policy should be practiced equally by both the ladies out there who are leaving the store as well the gentlemen.
(now THAT'S called common courtesy....y'all)
