All the Best Linux Cheat Sheets
http://www.nixtutor.com/linux/all-the-best-linux-cheat-sheets/

Good list of cheat sheets

Não sabe como deixar o papel higiênico? Seus problemas acabram. http://tinyurl.com/cpzk56 [from http://twitter.com/betium/statuses/1403187611]

Pictures demonstarting how to hang toilet paper

Next time you have to hang toilet paper, just remember this handy lesson. You don’t want to look like an idiot when company comes over: