Let's talk tools! What do you have? What couldn't you live without?

pettybludart said
I,ve boosted many cars,trucks,snowmobiles,ATV,s with my battery pack,I,ve even plugged a trouble light into it for light while fixing a car in a field at night.I own 2 now,one for home and one for in my truck.

What brand do you recommend? I've had a couple (black and decker and energizer?) and they broke after a few uses.