While grocery shopping (with the normal car), I picked up a case of 32 bottles of water (the 1/2 liter size bottles). I figured I would use it as a starting ballast while initially learning. This afternoon, I did some laps around the apartment parking lot to start getting familiar with the handling. Kept it slow (under 15 mph in 1st gear only). Started getting the hang of left turns, need more practice before I can say the same about right turns. I like the idea of "cones" in a school parking lot. Unfortunately, no school nearby.