She’s nuts about all her birthday gifts—these sweet illustrated cards get the message across. Woodland Chipmunk Squirrel Thank You Card; $6 for printable file, crazyfoxpaper.etsy.com
Guaranteed to make any gift-giver smile—Add the birthday boy’s pic to take this card over the top. Burst of Brightness: White Folded Thank You Cards; $2 each, tinyprints.com
What a Blast
Fill-in-the-blank cards get thank yous in the mail a whole lot faster. Order these cool science-themed notes as paper or printables. Fill in the Blank Birthday Science Lab; $14 for 12 cards and envelopes, celebratelilthings.etsy.com
Save So. Much. Time. These apps make card sending a breeze.
Snap pics as he opens his gifts and add it right to one of Red Stamp’s digital designs—pick from over 1,000 options. Send your thank yous via text, email, Facebook, Instagram, Twitter or snail mail, too. Digital cards free, redstamp.com
Don’t just invite the class via email and then slave over written thank yous when the party’s over—use evite to say thanks, too. All your guests’ emails are already right there. Done! $2 for every 5 contacts, evite.com
Choose from a gorgeous selection of cards, then get the kids to “pen” their messages online. Postable turns this into “script” and guests get thank you cards in the mail complete with realistic “handwritten” thanks. $2 each, postable.com