[lethc]

This probably goes without saying but make heavy, heavy use of the wiring guide FIRST provides you. It'll tell you where to hook everything up and give you important details like recommended/minimum wire gauge.

I'll also second clean, neat and most importantly pre-planned wiring. Place components in areas that minimize wire runs and make sure you allocate enough space for all the actual wires.

Wiring is fun and it's one of the most important parts of the robot. Unfortunately there's not much glory in doing it well, but it can be catastrophic if something goes wrong. Have fun with it and ask lots of questions if you're unsure about something.