Have you ever heard the saying "cleanliness is next to godliness?"
I like this saying because I happen to ascribe a lot of value to keeping things nice and tidy. Unfortunately, my two roommates are not as inclined toward cleanliness as I am, and I find myself occasionally miffed by their failure to perform basic tasks like cleaning dishes or throwing out their trash.
Naturally, I have found that the most effective remedy for this issue is to leave a large quantity of douchey, passive-aggressive notes all over the apartment:
I would like to thank Shakespeare for this last one:
2012 UPDATE:
My roommate left this chicken breast in our fridge for about a month: