Envelope Guest Book Idea ~ Transform a store-bought album into a guest book that has a handmade feel. Use double-sided tape to affix envelopes in assorted sizes and colors to the pages of a plain-paper photo album or scrapbook. Leave cards and a pen on a table for guests to write wishes. When they're done, they can tuck their cards inside the envelopes for the bride and groom to enjoy later. also would work for baby/bridal showers, anniversary party, graduation etc.