For local/in-town shows I only take what I need to get myself through (usually 1-2 basses, amp, backup micro amp, pedalboard and extra cables & mics). For road gigs I'll take a toolbox full of tools (everything from a soldering rig to extra strings for all instruments and drumsticks) and a duffle bag full of miscellaneous cables (came in really handy when half of the FOH went out and wouldn't work without the 20' Speakon-to-banana-plug cable I had). I even had tools to help some guy change the tire on his son's car while we were on the road, which made him a fan of our group.
The trick is not letting your band(s) get to be too reliant on your goodwill and overpreparedness; I've purposefully left my tool box and cable bag at home when one artist or another would just assume that they could rely on me to fix known problems instead of proactively addressing said problems themselves before we hit the road.
The trick is not letting your band(s) get to be too reliant on your goodwill and overpreparedness; I've purposefully left my tool box and cable bag at home when one artist or another would just assume that they could rely on me to fix known problems instead of proactively addressing said problems themselves before we hit the road.