When I pull my cover off I try to keep as much of the junk on top from falling into the pool although most usually ends up in the pool anyway. :-)
I drag the cover to the front of the house and put it accross the driveway. I then use a solution of bleach and water in a bucket and wash it down with a mop. Let it dry in the sun and flip it over and do the same. Fold it up as best I can and store it away for the summer.
One of the saddest days is when I have to pull the winter cover out again!!!

Bruce