I just found a great method of mixing small quantities of cement in the local B&Q; it's basically a large sheet of plastic (the same kind used for making Hippo bags) with a handle attached to each corner. You tip the mix into the middle, and two of you lift the handles in turn to mix.
I was looking to mix some small quanitities of mortar, and I was resigned to using a board and spade. This was a great find, dead easy to use - apologies if you've already seen it (I searched the group archive to see if I could see a mention!)
nutts