Well, I cut heck out of my left index finger yesterday (sliced a third of the way through the nail and got a good bit of meat, too. Poor knife control. Chaz would be disappointed in me.).
And I know I've mentioned it before, but these hydrocolloid bandages are a superior technology. Go on, stay on, keep wound clean and sealed. They even seem to mitigate the pain my keeping the wound closed and applying a little bit of pressure.
One just need to keep them dry and covered, so they don't abrade and get icky and snag at the edges, or melt off. I'm using a combination of vet-wrap and a nitrile glove, as-needed.
Guess I won't be going climbing tomorrow. D'oh.