Last year (or more likely the year before that since I wasn't in a Christmas decorating mood at all last year), I realized I had two light bulb testers. I probably bought the 2nd one at an after Christmas 90% off sale at Hobby Lobby or something, not realizing I already had purchased one. Well, I needed to find one because part of the light string on the tree was out. Could I find either one? NO! I finally found one in a box of stuff that I had contemplated selling on eBay (like anybody would buy my extra Xmas light tester). You'd think I would have put it in with the spare light bubs. Nope. I'm sure it will turn up someplace totally stupid.