WD 40,
very clever stuff, I was touring in Spain a few years back, and complained about stiff joints, especially knees, and one of the group who is a distubutor of the famous blue can suggested using WD 40.
I thought he was taking the p'ss and trying to sell more product, but eventually I tryed it and HEY.... it worked.
It got to the stage when every morning 12 grown men & women stood there in the street with rolled up trousers whilst he sprayed our knees, must of looked a sight?
I also clean my hands with it after working on the car that has been waxoiled, gets it of a treat.
AJ