In her book The Happiness Project, the author feels she will be happier if she has less clutter at home. So she follows this rule: If it can be done in less than one minute - do it now. I just did that and it brought a bit of a smile to my face. I was about to leave something right on the floor because I didn't feel I had time to put it away, but then I remembered the rule. So I put it away, and now I'm even steeling time to write about it here. So there was my smile for the day.