At home just my pocket knife - Schrade Leek. Both my key chains have Leatherman Micras as well.
At work I have a small belt pouch on at almost all times, AWP HP from Lowes. In it is a Lowes Kobalt Aluminum 6 in 1 screwdriver
2 small flat drivers -one is a Stihl carb driver while the other is a pocket clip style from ages ago with a magnet on the back, switch grip pliers, Wilde 6ln vice grips, Hyde 1-1/2 inch painting scraper, Pratt Reed 3/8 flat blade cushion grip screwdriver, cheap Cree single AA flashlight, cheap 2 inch folding pocket knife, and a couple ball points.
I have plenty of room to drop in whatever I'm working with at the moment, like crimpers, duck bill pliers, air chuck....