When you find yourself running low in your current jar of Fox's U-Bet, instead of turning the jar over and letting it drip into your glass, pour the milk into the jar. Screw the cap on tight, and give it a good thorough shaking. When you uncap it and pour it into your glass, its all nice and foamy, -and- its cleaned the chocolate off the inside of the jar.
Deeeeelish.