Just one job at a time. And you only need half the tools, less, than everyone tells you! Further, I don't think I have any 'quality' tools. All mine are pretty affordable department store stuff.
I think experience and tools are somewhat interchangeable. It sounds like you have experience - I have lots of tools instead. And I need them!
For me, having the right tools has been a massive productivity boost and although some of them I questioned as I handed over the credit card I regret almost none.
I actually opened this up to post a list of the tools in particular that I almost didn't buy or know about but have loved since:
*Cordless Dremel (with wire wheels and flappers)
*Cordless oscillating multi tool (sanding, cutting)
*Cordless Wet Dry Vac
*Butane Cordless Soldering Iron/Heat shrink tool (ok I don't have this but I'm kicking myself because I just realized they existed)
*Zip tie puller/cutter - pulls the zip tie tight and cuts it leaving no sharp edge
*Self Fusing Tape
*Butyl Tape (Obviously)
*3M VHB two-sided tape. Super strong, weather/UV resistant.
*McMaster-Carr - best source for 316 hardware.