Big Brothers Big Sisters
If you love kids, the Big Brothers Big Sisters program is a great choice for you (not to mention an awesome use of your time).
As a Big Sister, you get matched with a Little Sister and get the chance to mentor them for a period of time. You can help them with their homework, go to a museum together or even take a simple walk in the park. You get to practice being a role model and parent (for when that time comes, of course).
Click here to find a Big Brothers Big Sisters agency near you.