When I get told the bonus is in the bag? (Yes, this week) ;-) Never going to be bad.
I think I tend to like work just to tick along gently really. No 'solution starting points' as one might put it, requiring rapid intervention. I'm happy if I can just improve my picture of how to keep structures as elegant and easily maintainable as possible. It is nice to dream up a great new cross cutting structure that makes a job simple and as fool proof as can be, or offer advice that re-energises someone else's thnking on a project, but these are not things you can achieve all the time - and I have been doing this job long enough now to instantly know how to achieve most goals set from past experience. The cherry is that little bit of clearer thinking when you just smooth the path a little more.
I guess I enjoy weeks for other stuff - kids achievements, a good time on my bike, winning all my games at squash, my team doing well. If work is totally forgettable I can definitely cope!