Have you ever been in a situation where you needed something, but your just needed to use it this once, so buying it would be a bit overkill? Or, Maybe you have a lot of things laying around that you don't need all the time.
BorrowIT is project, where you can borrow or lent out your things, to private or public groups. It's up to you, if you wish a little pay for your lent, or your just let other use it for free.