This morning I sent this V3-rated bouldering route that had been bedeviling me at Planet Granite SF. For a couple of weeks I couldn't even get to the first hold, and it was irking me. Finally I figured out that I had to do a quick switch in grip from a pull to a push down, which felt really counter-intuitive, but stuck me to the wall. A lot of rock climbing is still doing stuff that feels weird but gets me up the route.
It's such a great feeling to send a route that your mind hasn't worked out how to tackle. Your body just... figures it out. I love that.