Black trash bag seems to be the item of choice. Get yourself into righting position, scoop water into the bag and viola!

But, I'm afraid that will lead to a safety issue i.e. the boat trying to sail away. I simply can't get back aboard if the boat is moving more than 2-3 knots. So, I've decided to attach a rope boarding ladder to the spin pole.

Normally I right with the main uncleated. I'm considering trying to right with the main sheeted in the "park" position. Anybody tried it?