For Costco members - most of you probably know they'll do a price adjustment if the item you bought goes on sale / gets marked down within 30 days but I found out today they didn't even need my husband's receipt! He goes weekly for a cheap lunch out of the office and had purchased a ski helmet two weeks ago for $50. It was marked down to $29.97 today so he went to customer service and all they needed was his membership card to give him back the $20! He called me all excited that he "made money by going to lunch". Usually I'm the budget crazed person, not him!