BRUSH TIP- Murphy's Oil soap: Do you have some crusty brushes you can't use laying around? or how about stamps with dried acrylic paint on them? Murphy's Oil soap will do wonders. Soak your brushes in Murphy's Oil Soap. You will see the paint or gel medium start to dissolve. Rinse with cool water. Repeat if necessary. For stamps pour soap into a flat tray or dish, set stamp in tray. Let soak. Use a tooth brush to gently dislodge paint and rinse.