Noniron, when I give lessons I always use a real good brand of paper towels..called VIVA over here..A good brand will have the same feel as cloth..newsprint would be a second choice..
I always work with a pallet--just a heavy weight piece of posterboard set against the wall--this is what I use to blow my brush out after color changes or if I need to test before going to the actual art piece..Use a small amount of spray adheasive to put your paper towel on the easle & practice to your content..it takes alot (rolls & rolls of paper towels)!!--but you've already shown you can do this..
