Keep It Short and Sweet. Little Letters of Thanks is quick and easy: write a little message, fold, seal, and deliver Included are 75 little letters that fold into adorably small envelopes, perfect for: Delivering to a coworker's desk Tossing into your neighbor's mailbox Placing into a friend's hand Seal letters with the 75 stickers included before before handing this little letter to its recipient and putting a smile on their face