I am the owner of my own cleaning company.I have used the large heavy duty scote-brite scrubbing sponges for the past thirteen years. I clean all floors with this product, I do not use a mop. I have all my customers purchase them. They work for several cleanings of an entire house, tubs, floors, etc. An excellant product.
I love the Scotch Brite Heavy Duty Scrub Sponge. They are perfect for all of my cleaning needs. The scrub side works perfect for the stuck on food and the bottom of all of my cookware. No more black on the bottom of my cookware. the sponge side makes all of my dishwashing easy.
These sponges are my absolute favorite brand. I'm a heavy cleaner, as I use sponges for not only cleaning dishes but also for kitchen cleaning (floor, counter, stove). I only buy sponges that have the spongy side AND the hard, bristly side (for tough stuck on food). The Scotch Brite brand sponges typically last longer and can endure more wear than other sponges I have used. Regular sponges without the hard bristly side usually fall apart within a couple of weeks, so those I can't even use. O-Cel-O sponges, another 3M brand, are weak by comparison -- the bristly side falls off after a limited amount of uses, rendering the sponge useless. Niagara sponges, yet another 3M brand, are about the same quality as Scotch Brite, so I like those too. My only complaint is that I wish Scotch Brite sponges were cheaper but it's nice that I can buy a two-pack of sponges and have them last for several months.
I just love to clean with the Scotch Brite Heavy Duty Sponge! I keep one in every bathroom, and the kitchen. We even use them outside. Getting married this summer, think I will put them on my registry... :)