It's something you do to your clothes so it doesnt crease up.
Actually, its using your spare CPU cycles to do computational tasks that require brute force. Check out the distributed computing section of the forums for a primer.
Step 1:Fold for team 33
Step 2:????
Step 3: Cure cancer
Its just that simple man...and its addicting, fun, and a wide range of characters in the forum Its SO easy...even a Moose can do it Sign up and ask away....http://hardfolding.com