We recently pitted a dozen spray, powder, and aerosol shower cleaners against each other to find out which are the best at removing deep-seated soap scum, rust stains, and mildew from shower tiles. See the results you'll see in the video (right) and in our report.

In our tests, powder cleaners like Comet and Ajax proved the most effective (and cost the least). Aerosol cleaners didn't work as well and, despite the no-rinsing-needed claims on their labels, left streaks. There's still no substitute for elbow grease. If you're looking for a green cleaner, Clorox Green Works compared favorably to the all of the cleaners. For more details, see our ratings of shower cleaners, available to subscribers.—Gian Trotta

Essential information: Find out which showerheads provided the most effective, relaxing sprays and join in the spirited debate that ensued from our recent "Shower vs. Bath: Which Uses More Water?" blog posting.