A lot of my favorites are on my electronics bench rather than for general wiring jobs.
Hard to choose between so many useful things, but for work with small parts a "pearl catcher" is very handy (spring-loaded device with three wire "fingers" to pick up and locate nuts, washers, etc.
An Avo 8 Mk. III meter is one of my favorite test instruments. Some scorn such "old fashioned" meters these days, but they're still excellent devices, and I'm kind of attached to mind as it belonged to my late father.
I'm proud to say that in our combined ownership of over 30 years it's still as pristine now as it was when new.
