Isn’t it quite challenging to lather up with a bar of soap that is 1/8th of its original size? I say so. That’s one of the reasons why I switched to using a shower gel.
A Korean design team, called DesigNoDoubt, designed “Soap Bank” which serves soap latherer’s by efficiently wrapping tiny bits of soap. You only need to slip your collection of small remains of soap into the slot and lather up at the bottom of the net.
The design is able to stick to the interior of the shower wall via a suction cup and the top of the net is a convenient place to keep your soap until it is small enough to fit inside the bank.