In our Wal-Mart superstore it's in the grocery dept by the floor care products, on the bottom shelf in a clear bottle. It should be by floor wax and stuff if your store is different. Look for Pledge with Future Shine.
It's killer. I used a little paint brush to apply some to this cop bike so I didn't have to mess w/ dismantling it and it worked like a charm. The bike had a dull, flat finish to start with:
Check out the pix of the '65 Corvette to see how it looks on a car with the blue paint. I'll try to finish this one up tonight.
If you do use it be sure to watch window areas when you dip a casting. The surface tension is such that it will make a bubble on windows and you'll have to pop it. The site I provided a link to has something about adding a few drops of dishsoap liquid or Windex to the work jar, but haven't tried it.
http://www.swannysmodels.com/TheCompleteFuture.html