I have an offcut of carpet in my garage that I keep for just this purpose.
I roll it under the area I want to work on. It's a damn sight more
comfortable than working on the concrete (or adjoining grass), tools, nuts
and screws don't get lost so easily, and I can pull it out from underneath
with all the tools, sockets and so on that I've been using, making it
easier to pack up. 
-- 
Malcolm           

Malcolm Bebb      bebb@embetech.demon.co.uk    Tel/Fax (44) 01202 772162
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