+1 on the baby wipes!!
Use them after each time you wipe off your tyres and your hands will be just fine, and they may smell quite plesent as well!
Trev, Fred Hatfield has made up some very long front arms for me to try with that cross brace I am making, will show you at the Ardent national if you are making it there mate (and the rest of the CRC based car I have made!).
Cheers,
Chris.