H.W.
We didn't get the gingerbread house built at Christmas, and I'm thinking of having Kiddo and a friend decorate it with a few boxes of Sweetheart candies. (Boy, have the messages on those changed since I was a little girl and actually thought they tasted good. ;) )
We usually start making valentines (very simple, cardstock hearts, stickers, drawing if he wants, which he loves to do, names) in early February. Do a few every few days or so.
My husband and I usually exchange cards and good craft beers for each other, maybe some good chocolate. Kiddo gets a card from one of us (I usually do a watercolor or make something) and a little something. Probably a small Lego set this year and a little chocolate, too.