Somebody started a blog about removing shoes in homes without my noticing. Unfortunately this blogger only put up a few posts in 2008.
I really like this:
Remember you dont have to justify your houserules to visitors.Shoe removal is not unreasonable.
You will actually find that in reality that the majority of homes are shoe free and slippered.
The dissenters will always atte attempt to paint a different picture, just as smokers will always try and justify their addiction.
You are not asking people to get undressed, simply take of their shoes. You are protecting your investments, your families health and just chilling out in your comfy slippers.