I finally learned to crochet last month and now just started to make a blanket with random yarn that I bought on Ebay.
7 squares complete, 70 to go!
I heard recently that you could clean wool by leaving it in a vat of rain water, and the yeast and sheepy poo cleans the wool for you, this seemed like much easier work than repeatedly washing and rinsing.
There seemed to be many ways to do it but this is what I did
This picture is the washed wool before giving it a final rinse.
It seems and smells very clean.