What do you guys do to keep your brush and lather warm between passes? I tried putting a bowl on a coffee mug warmer but it seemed to get the brush too hot and took away some of the lather. I know scuttles are sometimes used but I cannot find any that aren't meant for soap online. I am mostly a soap user and a 100% face latherer and subsequent passes are never as nice as the first I think because the first is always with nice warm lather!