No, I'm not opening a brothel... Nor are we doing Air B and B. We live in a small college town that draws lots of alums/parents for events and is always running short on hotel rooms. We signed up through the Alumni office to offer our very nice/private guest room downstairs to renters 4-5 weekends/ per year.
Kind of a painless way to make $75/night (including light breakfast). And I think we'll enjoy meeting the people who come to stay. Most are parents (about our age) of college kids.
** No need to comment about the IRS limits on renting tax free, I'm aware:-)