Why the heck hasn't this list been published before?!?! Gah! So many of these things drive me crazy! Thank you Buzzfeed for making the world a better place to live!

Of course you need to let people get off of an elevator before you try to get on! Or how about the jerk who insists on sitting right next to you in an otherwise empty movie theater? Don't do it! That's just creepy!

You should also leave a one urinal/bathroom stall buffer unless it's completely unavoidable. Be prepared to pay at the store, especially if you've been in line for a while... It's not like not paying was an option. Be prepared and please, for the love of all that is good in this world, don't write a check!