Have you ever stopped to wonder what role chemistry plays in our professional lives as cleaners and restorers? To get a sense, all you have to do is go out to your shop or warehouse and stop in front of the shelf, cabinets, or storage room that has all your miscellaneous bottles, cans, bags and containers of miscellaneous chemicals. And these are just the leftovers! They are the residual portion of one-off products that were purchased for a specific project, partially used, and thought to be too valuable to dispose. Surely (the thinking goes), we will be able to use this at some point in the future.