Dear Girls Above Me
This is a good site for a quick break since each entry is short. It is very funny, so it will likely lift your mood. I think many people can identify with the author, he is taking a painful experience of listening to an annoying conversation and doing something fun with it.
This site is a collection of all the ridiculous things that the two girls who live in the apartment above this one guy say daily. They are hilarious, and his comments are brilliant. All of the entries are a few quick lines that never fail to put a smile on my face.