Hide one in a mailbox or hand it to a friend just because. The perforated window opens to an uplifting thought, including “Delight in the moment.” It is a personal way to send everyday cheer without waiting for an occasion.

The lidded box has a yellow cover with white polka dots and holds 30 pop-open cards, each measuring 2.25 inches square. Every card has lines on the back for your own note. Tuck one into a greeting card, share it with a coworker, or leave one with your restaurant tip.