http://www.msnbc.msn.com/id/24832584/Call a local food bank, there are plenty. See what they need the most and go spend $5-10 and help feed someone.
Most of the food needed is basic staples and stuff that can keep. Canned stuff etc.
If you don't have kids, you don't know how expensive baby formula can be. If a place takes that, then spend the 15-20$ and drop off a can. The Target brand is a good option to get it cheaper and it's high quality.
Things are rough all over.