Write an article based on this "Use a scraper to scrub it down. Use a steel brush to get into small areas. Rub the polyurethane down with after wash. Repeat as needed. Sand the surface to remove polyurethane. Soak your discarded rags and steel wool in water to avoid fires."
A metal scraper is a good place to start, though if you're worried about scratching the surface, you can use a plastic one. The polyurethane should peel off fairly easily as you move along. The paint stripper should have done the hard work. Scrape in the direction of the wood grain. Scrubbing against the grain can damage the surface of the floors or furniture. Plus, if you add any scratches, it will look like the grain of the wood. In curved or decorative areas, a scraper won't work as well. Instead, scrub it with a metal brush, as the bristles will get in all the nooks and crannies and remove the polyurethane. After wash is a solvent you use after paint stripper. Its purpose is to clean up the end of the polyurethane, as well as remove the paint stripper you used. Just use a paper towel to rub it in. You don't have to leave it on for any time. Just rub it on until the rest of the polyurethane comes up. If the first round didn't take off enough of the polyurethane, go through the process again. Apply another layer of paint stripper to the area, and then scrape it down again, checking to see if that completed the process. After you've removed most of the polyurethane, sand down what remains. You can simply use fine steel wool. You can also use 150-grit sandpaper. The sandpaper will smooth it out and take off the last of the polyurethane. The after wash should have taken off most of the polyurethane, which is why you shouldn't need a heavy-duty sandpaper. Always rub with the grain. Take the water and rags to a hazardous waste disposal unit in your town, along with leftover stripper. Do not throw rags and chemicals directly into the trash or sewer. Contact your city to find your local waste disposal center.