[Chris is me]

We've been gradually getting better at wiring over time. We'll never be the Poofs, but we've got functional and organized wiring.

This was mentioned already, but one really easy trick that helps a ton is to use zip cord. Red-black zip cord in FRC wire gauges is commonly available and really helps keep things together. Even if you do nothing else, zip cord should cut your wire mess in half.

We've used wire ducting before to get wire runs out of sight, which is neat enough for a lot of teams. You can get wire ducting in the same sizes as rectangular tubing which I think makes the wiring more aesthetically pleasing.

A new thing we used everywhere this year was adhesive backed zip tie mounts. Similar to McMaster part number 7566K64, these little things allow you to put a zip tie wherever you'd like on a wire run without having to drill holes. Since we've rearranged our electronics layout more than a few times, using these instead of holes helps prevent a belly pan that looks like ugly swiss cheese.