We have very light colored carpets and have had a rule that shoes get left at the door. Mostly it was because of the light color of the carpet (off-white), but reading this I'm thrilled about the other benefits! Even my daughter's friends are all trained. I can count kids in the house by looking for pairs of shoes at the front door. <img src="i/expressions/face-icon-small-wink.gif" border="0"> My housekeeper brings in her own vacuum... I wonder where it's been? Maybe I should ask her to just use the one we have in our house. ~Juliet