Where can I volunteer that has little effort on my part (for MBA application)?

Does it have to be a large organization? I know that icangiveabuck.com sure could use your help. You could simply send out their URL to eveyone on your email, twitter and facebook contact list. They are into supporting local families with small donations that just make a difference. If everyone you know gives a buck, imagine how cool that would be! Help them a buck at a time!