I use a spiral of graph paper for a quilting book and put everything in it - pictures of blocks, layouts for quilts, notes for cutting and yardage, etc.
Right now, I believe I have three or four projects in there that are either in progress or on the chalkboard for after X project is done.
Right now, I'm looking forward to going back to a baby quilt I was working on before I got caught up in Christmas prezzies. Once that's done, I'm looking forward to doing a wedding quilt. After that, it's back to my quilted pillows...and the list goes on. If you tell yourself, "This project is shelved until I finish this other one," you're more motivated to finish the one so you can get to the other. Does that make sense?
There is something to be said for over-creating, lol.