These charming save-the-dates prove good news can come in small packages, too. Purchase mini cards and envelopes (Motel Deluxe from Paper Presentation, 800-727-3701, made these 2-by-3-inch sets). Run envelopes through a machine that adds adhesive backing (we used one from Xyron), and affix to postcards (either store-bought or cut from card stock). Handwrite or stamp your wedding information on the cards; tuck them in the envelopes, and seal. Add standard first-class postage, and you're set to announce you've set the date.