It is nearly impossible to get rid of liquids. I had accumulated many dozens of cans/bottles of spray paint, lubricants, wax, cleaners, oil, etc. at the shop, many new never used. The only place who would take them was Habitat, and then only the new sealed ones. So I donated them there.
A day or 2 later I stop by my brother's house. He says check this out, I found 5 cans of Wurth silver wheel paint at Habitat yesterday! Didn't you used to use that for the Porsche?
