Since someone mentioned Sam's Club on another thread, I would love to know if you think having a membership at Sam's or Costco is worth it? When you buy in bulk, do you use it or throw alot away? How do you do it to make the most sense and make it worth it? Which store is better, in your opinion? What are the best things (i.e. best value) - that you pick up the club stores? Any advise appreciated!