I created a board on Pinterest that I labeled "Smiles." My thought was to tuck away things that made me smile when I looked at them, but it quickly evolved into more. As well as tongue-in-cheek humor, it features some great smiles from children, animals and adults, too. It has a few bad puns and few good jokes.
It's Pinterest, so it I'm always adding to it and what I've found is that smiles are not only optimistic, they are addictive. You can't help but give them away. I encourage you to take a look and then share your smile and your optimism with others today and every day.