The next time you finish off a roll of foil, waxed paper, or plastic wrap, save the side of the lid with the serrated cutting edge and cut it into credit-card-size pieces. Use the serrated edge as a fine-toothed trowel for medium- to large-surface laminating. To stiffen the cardboard spreader and make it last longer, glue it to one of those fake plastic credit cards companies send in your junk mail.—Len Urban, Rancho Mirage, Calif.