Seeing the look on a child's face, as he or she stares, in awe, at a Christmas light display.
Taking a walk through the zoo with a friend on a chilly winter evening, enjoying the evening, just taking everything in... the weather, the other people, the cheer that's generally in the air.
Having a non-trivial conversation with someone about something that you are both very passionate about.
The familiarity involved, and the moments when you and a friend or coworker or etc are able to finish each other's sentences.
Spending time with friends or family -- you know, the ones you are so familiar with that it's just routine. The friends that make you know that you're welcome at their place, no matter what. Just watching a movie. Or chatting. Or grabbing a bite to eat.
Waking up before you have to be awake -- and being fully rested. It's even better when there's someone to wake up beside.
Yeah, I know that this isn't so much "really little stuff" but it's stuff that came to mind as being some of the most important stuff in the world to me. I wouldn't trade any of it for any amount of money. 😉
