Everyone's got their own ways to deal with this. Many times I've been pacing around, thinking, "what to shoot... what to shoot..."
Here are some things you might try:
Shoot at night. Especially with view cameras, it takes forever. Oh well.
Go macro. Rack your bellows all the way out and see what you get.
And, my favorite thing to do -- cut a bunch of RC paper up into 4x5 sheets and load them into your holders (or 8x10 or whatever you use). Rate it at ISO 6 or so and go take lots and lots of shots with that, as fast as you can. Get back, throw em in the dektol, fix em, and turn on the lights. It's really fun because paper is basically free compared to film, paper negatives look cool, the contrast is quite high, you don't have to fuss around with developing them, just throw em in the trays, you can have your safelight on, etc. Every time I do this I see something that looks really cool and go back and shoot on film.