I can't stand that last 1/2 gallon of standing bilge water, after I pull the transom plug (note, put boat on the trailer 1st). Take 1 sheet of paper towel, roll it up like a long cigar. Stick 1/2 of it in the transom drain, let the other 1/2 hang out. The bilge water will syphon out, leaving the bilge 100% dry. I leave it in until the next time I go out. In case the cover leaks, it helps keep things dry...