What a cute idea — from Katy:
Valentine's Day is all about showing love. So don't forget giving an extra dose of hugs and kisses at home.
Cut 2-3 hearts out of construction paper, string them up anyway you like, hang them over a doorway and use it as a "mistletoe." You can get more fancy with the design. I keep it simple and just focus on the kisses under the "mistletoe" of hearts. No one would mind if you keep this decoration up for a few extra days!