Piggyback your bars to eliminate the dreaded soap sliver!
Regular bar soaps dwindle into tiny slivers that nobody enjoys. STACK soap solves this with a unique cupped design that helps piggyback each sliver onto the next fresh bar. STACK's specially shaped groove and grippy, raised lettering hold the two bars tight and merge them together as one. Eventually when this new bar becomes small, simply repeat the process with a fresh bar.
Congratulations! You've started a waste-free Infinite Cycle of Soap.
How can an object that loses matter each use be infinite. Well it is kind of like Heisenberg's Uncerntainty Principle, actually wait no it is nothing like that...hang on let us ask Sheldon.