Bar soap always ends up crumbling into tiny, unusable bits as the bar gets worn down that inevitably just dissolve while slowly getting gross in the corner of your shower. This carved out body sponge puts them to good use so you never waste them again.
You can see a demo in the video above. You'll need a large sponge and scissors. Cut a hole in the sponge, carving out a hole that goes about halfway through the sponge. Collect your soap bits and put them in the sponge. When you want to use the sponge for cleaning, wet the sponge, scrunch it up so the soap bits are contained and start scrubbing. The soap bits create suds so you'll get the most out of every bar of soap.
Soap Dish Sponge Making [Nifty (YouTube)]