To me a shave stick like the Tabac one is the only way to go for travel. I'd say learn to face lather and skip dragging a bowl around while you are at it. A smaller sized synthetic brush in a plastic pill bottle too. Make sure to drill some holes in the bottom of the pill bottle for ventilation. You can even get a 4 piece travel DE that comes in its own case. All that makes for a very compact travel shave kit.

Bob