1. Does "measure twice cut once" count as one tip, two tips (once for each measure) or three?
2. Keep your hands away from the sharp cutty things.  Especially when they're travelling at speed.
3. When dealing with hot things - holdy coldy.
4. Always have a swear word handy (as long as you're not live streaming on YouTube).  
5. Can't work out how to do something?  The answer is always in the StewMac catalogue.

Always cock up before you ask for help, that helps to reinforce the lesson learnt.

Never cut the body shape /neck until you’ve done all the routing!

Vintage wiring

Vintage or 50s wiring on the tone pot will keep your rhythm sound clear as you wind down the volume. I hate when a guitar begins to sound muddy as soon as you lower the volume control and I’ve never found a satisfactory treble bleed circuit to compensate.

‘Vintage wiring’ runs the capacitor from the volume output leg to the tone pot leg instead of the volume input. The tone pot wiper goes to earth.

More here at Premier Guitar if you can cope with the ads, or just search t’interweb.

https://www.premierguitar.com/articles/29161-mod-garage-three-ways-to-wire-a-tone-pot

But here’s the kicker I learned from that Dan Armstrong. If you have the tone pot wiper connected to earth and a four conductor humbucker fitted, then connect the two joining wires (ie the wires soldered together to run the coils in series) and solder them to the redundant tone pot tag.

With the tone control wide open, these wires go to earth and you’ve got a single coil pickup. When you start to roll off the tone, the wires are no longer earthed and you’ve switched to full humbucker. No need for push-pull pots or mini-toggles.