I thought the hose pliers in this thread might be good for getting off obstinate hoses when I'm working on cars.
That sent me on a fishing expedition where I found two neat tools on rockauto.
This one is for pulling off hoses.
... and this one is for the little clamps that seem to always be in precisely the wrong position to be able to get a pair of pliers on them. I usually use a pair of needle-nose vice grips for these, but it's cool to know the tool exists.