Upromise

When our son was just a couple months old I signed up for UPromise.  It's very easy to do and after the initial sign up, it's a very "low maintenance" way to save money.  In 5 years we have accumulated a little over $1000.00 in his account.  That's a lot of change for basically doing nothing.  To read in detail about UPromise and all of the wonderful offers they have go here.

When you sign up you link all of your shopping cards and credit cards to your  account.  When you make purchases on qualifying products or with participating merchants using those cards you earn cash back into your account.  UPromise also offers electronic coupons you can load to your shopping cards and when you purchase those particular products, the value of the coupon is deposited in your account. 

You can invite family or friends to join and help you save even more - grandparents love doing things like this!

Even if you don't have children you can still join UPromise.  You can save toward your own education if you are a student, you can pay off student loans with the earnings, or you can just put it in a savings account.  UPromise allows you to withdraw money at anytime, you just have to fill out a form and request a check, no strings attached.