Origami is an interesting and relatively cheap art form. Heather Shida, who's been making origami since the age of ten and now instructs others online in this art, based this gift-card envelope design ...

Directions to make an envelope book: • Glue the flaps shut on three or more envelopes. Fold the envelopes in half horizontally. Use a ruler to label 3-inch marks going down the length of the envelope ...