Abstract: A bathroom tool assembly having a bathroom tool and a supporting holder, with a releasable interlock coupling between the bathroom tool and the holder. The releasable interlock coupling conveniently maintains a secured coupling of the bathroom tool to the holder, so that the assembly of bathroom tool and holder can be easily moved without leaving drips behind. The releasable interlock coupling is structured to allow easy coupling of the bathroom tool to the holder to securely interlock the bathroom tool to the holder and easy decoupling of the bathroom tool from the holder by a user with one-hand operation. In one embodiment, the releasable interlock coupling does not include any moving parts. In one aspect of the present invention, the releasable interlock coupling comprises a magnetic coupling.