On Thu, 6 Aug 2009 01:59:43 -0700 (PDT), RobertL wrote:

He had little plastic covers (made for the purpose and available from
shops then) that he was going to ask people to put over their heels when
they visited.

Maybe not in the shops anymore, at least not common ones, but still
available, one supplier:

http://www.mannering-rubber.co.uk/

Not sure they do small quantities mind.

--
Cheers
Dave.