I checked into the oil boom type stuff or something similar. It was an absorbant type material that you can buy in long lengths to stretch out across the water. It is made to float and I thought it would be perfect. It was way too expensive for me so I never tried it.
Trialsguy, I think you have the perfect million dollar idea with that starter envelope you've invented. Now if you could just package common sense we'd all be doing great. I had a genius idea once. A bag that contains instant water for $5. Just add water.

Gotta get back to fishin!