One day, we're all going to have a waterless shower. Finding a steady source of portable water is a challenge in the developing world, what more of clean water. One South African student has developed a unique, water-less shower gel.

DryBath, as the gel is called, was developed by 22 year old college student Ludwick Marishane. Rubbed onto the skin, like Purell, the gel kills bacteria, moisturizes the skin and, unlike Purell, leaves a fresh scent, according to Marishane's company website, Headboy Industries.

One packet is priced at $0.50 for rural communities, $1.50 for corporate types—is enough to wash the entire body and kill 99.9-percent of germs, which should cut down on the disease rate in rural areas onset by poor hygiene.

Marishane brought the product to market using only his feature phone. He did it all without a computer. [Headboy Industries via LiveScience]