Live trap is pretty easy - but the trap needs to be small enough that the skunk can't raise the tail - not totally fool proof to prevent a spray, but pretty close.
Contractor plastic bag around the back and sides of the trap, and a dumped can of sardines in the back for bait.
I had seven skunks trapped out from under my front porch in the past month - momma, and six babies - only one baby got a shot off as the trap was too big to stop them from getting the tail up.
Opening the trap door is fun, but the animal is usually backed up in the back corner watching - the plastic bag around the back only gives it one direction to look in, and stops (most) of the spray if they get one off.
YMMV...
