I don't know what you do to keep yourself in the right frame of mind at work, but I find red lipstick helps.
I'm working out a technique for doing a number of "vintage" - looking illustrations... I basically have it down now, but I'm still experimenting with different kinds of paper and tea.
I've got so much SPACE in my studio now! It's incredible... and I found a whole stack of CDs when we emptied one of the cupboards to move it, so I have nice music to work to, too. Hah.
Here's one of the experiments:
It's hard to tell from this picture but it's all very useful.
While the paper was drying I went out and drew marks on the basketball court in the park for a game later on, with a piece of chalk on a long stick, and on the way back I drew a cat on a wall really high up (not often I have the opportunity).