I goofed and bought 2 gallons of Varnish instead of quarts! Anybody have a good recommendation for saving what I don't use? Like... Glass jelly jars? Plastic mayo jars? Or would I do better by buying quart sized empty cans? In the past I've preserved paint in the can by putting a layer of Saran wrap over the unused paint & resealing the lid. Would that work for varnish as well? O - in case anybody cares it's Totalboat Gleam marine varnish, described as a 'tung oil marine spar varnish'.