If you have an iPhone or Android, this app is a MUST! It is free to download and anytime you go for a walk, run, or bike ride, a corporation donates money to the charity you choose. I think it's .25 per mile for running and walking and .10 per mile for biking. I can even run this app with my MapMyRun app with no problems so there is really no excuse not to use it and support a good cause.
Here are a couple of screen shots of my history:
Here are the charities you can choose from to support:
This is the one that I've been supporting. I'll switch it up in a couple of months.