Ergonomic bar soap

A cleansing bar includes a surfactant-containing body, which includes a top surface, a bottom surface that is substantially opposite to the top surface, first and second ends, and first and second sides extending horizontally and meeting at the first and second ends to together define a perimeter around the cleansing bar between the top and bottom surfaces. A first horizontally-extending groove is formed in at least the first side surface. According to one embodiment, the first horizontally-extending groove extends only partially between the first and second ends. A second horizontally-extending groove is formed in the second side surface, and also extends only partially between the first and second ends. According to another embodiment, the first horizontally-extending groove is further formed around the first and second ends and in the second side surface to encircle the cleansing bar.