@ N ~ OK, so this story isn't even mine. But I just have to share it with you.
A friend of mine dabbles a bit in online dating - I can't tell if he's been more or less succesful with it than I have, but he did date this one girl for a couple of months. It ended recently, so he went over to her house to exchange keys (back).
And collect stuff he had lying around her house.
Here is the list - I kid you not:
and, well, keys.