Something you might consider for the more mechanical stuff:
https://www.amazon.com/VMPVT-001-5-M...%2C157&sr=8-15
These things are worth their weight in gold when you have deal with a stripped or frozen screw. I used to carry a pair when I was a field engineer and I just got a new pair to fix my door problem on the 1/18th scale Shelby.
Extremely handy if you're getting into RC.