Earn Money for Your Kid’s Future while you Shop! Upromise is something I use every time I shop! I have already saved a great deal for my son’s college just by using this great service. You can also get your friends and family to join to save even more! Right now is an excellent time to sign up with all of your holiday shopping. The best part is that you can save even when not shopping online. Just register your debit and credit cards and each time you use them you can earn!