Make little cars for each of your ideas, or buy a pack of Hotwheels™ and paint them special colours (red, turquoise, lavender etc.) colour coding them with your ideas. Next, you'll need a big piece of paper with a drawing of a racetrack on it, or a Hotwheels™ track, will do. Put all of your ideacars™* on the track and race them. The race rankings are your prioritized ideas, like it or not.
*ideacars is a registered trademark of Tim A. Richards and Superhero WERK 2009