What Hand Soap do you guys use?

I use gas.
If i don't have any gas handy, then i use brake clean or lacquer thinner.
Solvent and diesel fuel are not as good, but will do in a pinch.
Then i go eat a 4 piece KFC chicken dinner and wash my hands in the bathroom after i eat at the restaurant.
Perfectly clean after that, guaranteed.
It's finger lickin' good.

Don't forget the carb cleaner! :D

I use gloves a lot, especially working with grease. When I do get the mitts dirty, it's Fast Orange, followed by dishwashing liquid (Dawn, Palmolive, whatever I have nearby).

I do have fond memories of Boraxo, though.