19 Leaving Hair in the Drain.
Apart from birth, death, and taxes, discovering hair in the shower is one of mankind’s universally shared fates. Instead of waiting for all that human fur to congeal and clog your pipes, clean it out after each use. Unless you and your roommate share an identical head of hair, they’re sure to notice if you don’t, too.
20 Hogging The Bathroom Counter.
Unless you’re living in the lap of luxury, odds are the space in your bathroom is at a premium. And if the entirety of your bathroom counter and shelving space is covered solely in your things, that likely isn’t because your roommates acquiesced to the arrangement. The likely scenario: you’ve simply commandeered the space without realizing it.