In General - Stablebots have a metal electronics enclosure with separated high and low voltage sections. This allows you to more easily maintain and organize your electronics enclosures and provide a safer experience.
Follow a color scheme to prevent wiring mixups and errant routing. If you are consistent with colors, It makes it easy to spot when a wire is landed in the wrong connection!
Proper crimps and connectors for all of your board connections - See our Wiki Page for crimping and crimpers!
JST XH (Typical of BTT motherboards - 2.54mm pitch, rated to 85c)
JST PH (On some toolboards and other smaller applications, 2mm pitch, rated to 85c)
JST VH (On the new BTT Kraken Board, High-wattage outputs on the Duet 3 series)
Microfit MF3 (Toolboard connections, distribution boards like Carabiner, Dumbboard, XOL board, etc)
Wire ways are magic - If you can fit them in, they make things alot neater-looking, less likely to cause issues down the road from vibration or handling, and you can tuck your service loops in and hide them!
Speaking of Service loops, It may look nice to have everything be nearly-taught, but give yourself a few cm per wire to allow for changes in the future. Its a bit of extra hassle to make it look nice, but it will be very welcome in the future.