A few years ago I was watching MuchMusic (okay, it was a lot of years ago), and Jack White of the White Stripes was being interviewed. Jack was talking about the power of using constraints to drive his creativity. I couldn’t find the MuchMusic interview, but I was able to find this video on YouTube.
I really identify with this mindset. When you have limitless options you get distracted, and spend so much of your mental energy just wrestling with those options. When you have only a few tools to work with you really need to get creative in how you use those tools.