Prizle is a charity shopping service and a donation tool that lets you give back for free to your chosen charity. Each time you purchase a product or service on the sites that accept Prizle, you will receive one free donation. You have the option to donate right away or collect your points so you can donate more to your chosen cause. 

You are not limited by the amount of purchases or the type of product or service. All you have to do is activate the feature and make your purchase. Just remember that the donations are distributed according to the commissions that the various shops are willing to offer.