My MWF solution was to just leave it in a mug. I load the brush until I start getting some lather buildup in the mug, add a little bit of water to the tips of the bristles, load up a little more, and then face lather. I put the brush into the mug while shaving, and usually wet the tips of the bristles and load a little more when I need to relather. And for all that, I cannot see the puck getting any smaller. It seems to me like it's a hard soap that also needs a fair bit of water.