I find that in summer months especially, I tend to have a number of small projects on the go. I also tend to work in so many different places, in the side garden, the backyard, the deck, the family room, living room, or even the kitchen, and it seems that I tend to move around even more in the summer than any other time of the year. So...my drafting table tends to become piled with projects in progress, which I don't think is a bad thing. When I see everything splayed out before me I tend to do two things:
1. I keep working on projects because they are not 'out of sight, out of mind', and
2. This is a big one...when I'm working on several projects at the same time, one seems to feed the others. If I'm stuck in one, I can move on to another or, when I'm in the working stages of something, my eyes and mind wander over all of the materials around me and I begin to make the most interesting connections which is always a good thing when I'm doing something creative.
I noticed this particularly when I'm developing new ideas or when I feel challenged at all.