When I saw these oversized vintage books at a garage sale, I knew exactly what I wanted to do with them: turn the pages into colorful envelopes. (Because snail mail is so fun to send and receive!) They're super easy to make and are sure to brighten up anyone's day.
Fold the two side flaps in. Then fold the bottom up and use a glue stick to attach the bottom flap to the side flaps. Lastly, fold the top flap over and use a glue stick to seal it after you've slipped in your letter.
Happy letter writing!