Hey Mr. Green,
What can I do with a small amount of used paint thinner? --Gerald in San Francisco

Mr Green answers:
This is the kind of question "reduce, reuse, recycle" was invented for. Just pour the liquid in a can or jar and let the gunk settle at the bottom. When the liquid is clear, voila, you have reusable paint thinner you can pour off into another receptacle. Scrape the glop out, wrap it in plastic, and toss it in the trash. Then recycle or reuse the container.