Some people say that becoming a grandparent is pretty much the greatest thing ever. After all, you get the benefit of being idolized by plucky, impressionable little munchkins minus the pressure of being solely responsible for their care. But while your role as grandparent technically lets you off the hook when it comes to providing financial support for those kiddies, many folks with grandchildren wind up spending big-time on their little bundles of joy. According to an AARP study, 25% of grandparents claim to spend over $1,000 a year on their grandkids.