You've heard of Airbnb
? The website that launched in 2008 lets people rent out their house, spare bedroom or even the living room sofa to travelers for a few nights, taking 3 percent from every completed booking. (They also protect hosts with a $1 million property damage guarantee.)
But did you know you can also rent out your parking space using Airbnb or ParkatmyHouse
? Both services offer free listings and are popular in areas near stadiums, concert halls and airports.