some of us are energised and our creativity swings into high gear when we are surrounded by stuff, i can sit at a plain desk and be nearly paralyzed. but get out a box of cards and a couple pens, and maybe a doll, and take off my bracelet, and suddenly i've got an idea and i'm raring to go! they (those who study these things) seem to attribute it to the side of your brain that is in control. naturally, i'm in the messy side of my brain.