Every now and then I catch five minutes of daytime junk tv. One show had people going into houses to see how clean they REALLY are. What they did was they vacuumed, and reasoned that what you get IN THE BAG is what is still on the floor. We know all vacuums can't pick up everything. So here are the contents of my kitchen floor. Dirt. Corn pops. Kix. Doritos. Bits of plastic and hair. Yum!