My roommate lives in my laundry room.
There. I've said it. She came to us out of a really bad situation (her landlady gave her less than 24 hours notice that she'd need to leave due to a messy divorce), so she originally was just going to crash on our floor for a few days. A few days turned into a couple of weeks, and no housing leads were panning out. Money was tight (AmeriCorps offers a living stipend just at the poverty line), and we all really enjoyed each others' company. My other two roommates and I were open to having her stay, but knew that she couldn't live in our living room forever. Even though she repeatedly reassured us that she was fine with the situation, and could easily make up a partition out of curtains, we knew that it wouldn't be a comfortable long term arrangement.
Our one empty space was the laundry room. It's six feet by four feet, and uncarpeted. However, for someone who's just looking for a place to sleep, it's perfect. We knew it was likely that eventually she's crave her own space and find an apartment, but were fine if it turned out to be a permanent arrangement.
It's been two months. Even though it was really awkward when her mom visited and saw our huge apartment, and then her little room, she repeatedly reassures us that she loves the space.
What secrets do you have lurking in your closets?