That's what's getting me through grad school thus far. I had a really good experience collaborating this evening in the midst of the bad assignment in the class that I have a fundamental philosophical, pedagogical, issue with. We don't need to go into the issues I have with the class, but the important point here is that we have a ridiculous assignment due for next week, which almost no one in the class is equipped to handle. So, I met with three of my classmates this evening, and we worked through it together. I can't say that the assignment was fun, but we all worked very well together, and we all brought very different skills and backgrounds to the table, and I think we got a good handle on it. It was a rewarding experience of collaboration, and another reminder that I really do like the people in my cohort!
Coffee. Kind of self-explanatory. I drink a lot of coffee. I go get coffee with various people when I'm sitting in my office. I while away an afternoon drinking coffee in a bookstore and chatting with someone interesting. I have coffee at dinner time, and I stay up till 1:00am and post blogs ;)
The little things: trips to the wine shop, lunch with friends, kitty cat snuggles, random voicemails from friends, crushes that make life interesting.