Things that make me happy. A nerd thing, a nerd thought, and the internet in general.
First.

My new pokeball makes me happy. This little beauty showed up in the mail today. It's actually much smaller than the picture suggests, due to picture trickery like one would use to create the illusion of hobbits/giants.
Within ten minutes of me taking it out of the package, I was caught pointing it at the dog and making sound effects. I'd be ashamed, but I lost that ability a couple months back around when I developed my attraction to Horatio Caine.
He also makes me happy.
Second thing that makes me happy is that I live in a world where people know what I am talking about when I say I'd really like to read a Great Mouse Detective/RDJ's version of Sherlock Holmes crossover. It'd be like Ratatouille, but with less health code violations.
Please be noted, that in the next quote I actually find Dawson to be both freaking adorable and the best character. It is also half-written by Ann.
Watson: Why is my mouse fat?
Dawson: I say!
Sherlock: Watson, I would never insult any creature that can run up the inside of your trouser leg.
The internet makes me happy because my plan to leave a little paper box filled with candies by my dirty laundry with 'LAUNDRY FAIRY TREETZ' written on top is enabled by the sheer amount of free origami box guides littered around the internet. I love how I can get this stuff legally and free.