We are looking to buy a new wicker patio set. similar to the pic shown. Eventhough alot of them are advertised as 'all weather', dont the cushions get smelly/stained/mildewy if left out? What do you do with yours when it rains? I'd hate to drop all this $$ on it, and have them be ruined in months, or have to replace the cushions. Is there a treatment to spray to make them more 'water resistant'? Thanks.External Image