I picked up these mini tin mailboxes at Target a few weeks ago. I personalized them with my kids' initials and have been using them to store little notes (like these Angie made last year) and valentine treats for the 2 weeks before Valentines' Day. My kids love getting their mail each morning to see what surprise has been left for them. They have also been leaving notes and drawings for each other. It's a fun activity for the whole family and adds some cheer to these cold days in February!