Seeing someone being kind. It just kindles a warm place inside.
Our house diva, Missy the 15 lbs cat. She is the neediest creature ever, but she has a way of saying "thank you" with her eyes that never fails to impress.
Practicing with my eyes closed and "going somewhere" for a time.
Hearing myself harmonizing while singing to whatever I'm listening to. It's rare I'm "right on" but magic when I am.
This time of year, stepping out around now actually (it's currently 12:30ish) and just looking at the night sky in the crisp air. The other night I was rewarded with Neptune and Venus dominating the mid horizon for several hours. I feel very small, and quite in awe when I do this.
Comfort food. A dangerous thing, I know, but little else can bring the joy of eating a food your grandmother made for you as a kid. I've perfected a few dishes of hers down the years and they are dear to me.
Making all the lights on whatever drive you're on.
Tinkering. I just like fussing about with mechanical things.
In that vein I enjoy watching others craft things. I'm fairly addicted to shows like Forged in Fire, Metal Shop Masters, Blown Away and nearly every cooking show imaginable. I don't watch normal shows. Pop Culture shows hold no interest for me but I can watch the others I've listed over and over.
Finishing a great book. Reading in general, really.