When he opens his lunch box the first thing I want for him to see is a love note from me. Sometimes I write a word here and there, other times I simply draw him a picture. I don't do it every day, but often enough that he expects it. He likes it. He says it makes him happy. I like making him happy.
What I love the most is that he's been collecting every.single.one.of.them. First he stuck them on his wall. Lately he's been trying to figure out where to put them (they only stick to the wall for so long.) I suggested he could put them in a mini photo album, but he didn't seem to keen on the idea.