Race Day Prepared
1. Have extra axles and wheels on hand. 
2. Have a derby tool kit handy. It should include superglue, sandpaper, a drill, extra screws for your weights, extra weights, a small screwdriver. You may not use it, but it will make you the most popular person at the event.
3. Transport your car in a shoebox. Dropped cars are unfortunately a too common experience.

4. Add LOTS of graphite right before check in.

5. Remind your scout that playing with his car prior to the race may cause damage.