A big rubber mat full of honeycomb holes in front of the lathe catches most of my errant swarf. It is made for use in restaurant kitchens and industry and is designed to catch droppings while providing a thin area around each hole that you stand on. So not crunching around on swarf to start with, and the swarf does not get all over the workshop (so much). I bought it at the local hardware store and could not get by without it.
Still take my shed boots off before going inside though. But more due to ancient motorbike grease than swarf.
This is the stuff. The big holes are about 20mm diameter.
A similar but smaller mat in front of the house door catches any odd cling-ons if I have to duck inside quickly without taking boots off.

Edited By Hopper on 21/06/2015 04:01:51
Edited By Hopper on 21/06/2015 04:04:45
Edited By Hopper on 21/06/2015 04:05:21