Alright im sure that most everyone here uses purdy brushes, i dont think there is anything else to use but who knows. My question is as follows, one of the guys that i work for is a natzi about his brushes. He swears that his brushes will only touch one kind of paint ever and this will preserve his brushes in perfect shape. So like he has a brush strictly for matte wall paint, eggshell, trim, aura paints, flat ceiling paints ect, ect. The guy must have thirty brushes with him at all times and he is very intense about care for the brushes, cleaning must be done in certain ways like never let water run down to the stock of the brush always just pat the brush downward so the bristles mash the paint out. I must say his brushes are in great shape and form but is he going to far. I realize you should keep trim brushes for trim paint but will a brush be ruined as its introduced into new kinds of paint. Also simple question but whats the best way to clean brushes and care for them.