A little characteristic that I find extremely endearing in my four year old is his ability to see everything as treasure. It's a normal occurrence for him to keep a piece of woodchip from the playground in his pocket until pickup and then bring it out as a gift for mommy or daddy. And don't think you can get away with just throwing it away because you will surely be asked to reproduce it a couple of hours later. So this is our rotating pile of "treasure" that we keep around for such occasions. Wouldn't be great if we all found such joy in the little things?