In order to balance out the universe, it's only right to have a list of Things That Don't Suck.
In no particular order:
You know that perfect zone you get into when doing a boom up or down combined with a push-in and the speed of both match up exactly and the operator doesn't have to touch the tilt wheel? That doesn't suck, but it's a delicate balance.
Finding the one perfectly level piece of ground in the whole state. For a fifty foot run.
The director walking up and saying,"Thank you. Great shot."
A standing board that fits the first time.
A UPM who actually understands how movies are made, not just how to read a balance sheet.
Seeing an old friend you last worked with over ten years ago.
Pulling off a very technical move on the first take.
Your family showing up at lunch.
fourteen hour turnarounds.
The familiarity of working with a camera and grip crew you know very well and with whom you've done several shows.
Having your B camera dolly grip walk up at the martini and saying, "The truck's loaded, just roll it in and we're done."
A really good wrap party. Not a snooty one with a jazz combo, but an open bar and a nasty funk band.
Finishing a show in December and knowing you have another one starting in January (Or even February).
A good stand-in.
Getting rained out on location, in a really cool city, early in the day.
Laundromats with bars in them.
Night exteriors downtown when you light up three city blocks.
Getting home while the sun is still up.
This is only a partial list. Please add your own in the comments.