It seems like every store I go into now has its own store customer member card. I have them from a couple of local grocery stores I frequent and have a bookstore card also. Of course I have a video rental card but luckily they also accept my driver's license because I never seem to have the darn card on me.
That is the problem with those cards. It seems I never have them with me when it would actually do me any good. Half the time the grocery stores don't even require them to get any discount. Of course, when they are have a big "custome card member only" sale, I'll have switched purses and left it at home.
So, do you have many of these cards? Do you go for the store credit cards like at Target or Sears, etc? Do you remember to have your card with you? Is it worth the hassle?