"Just leave it inflated in the living room all winter. If you spill a beer, drop a chicken wing, or dump a bag of doritos on it; there's really no concern about the clean up. Just take it outside and wash it off!"
As always, we've sound advice from yesimapirate. Other added benefits are that not only can you hold off on purchasing that expensive couch, loveseat and easy chair combo until spring, but there's nothing like having a 12' or 14' boat inflated in your living room to make you appreciate just how big it really is!
Nothing in the world is more yielding and gentle than water. Yet it has no equal for conquering the resistant and tough. The flexible can overcome the unbending; the soft can overcome the hard. - Lao Tse