You wouldn’t think that shower soap holders could make any impact on your life other than to act as a holder for your soap, but surprisingly, they can. The first concern is, if your bathroom shower does not already have an installed soap dish holder, is where to place it. Once you have figured that out, then the next big question is how to attach it to your wall or shower tile. Some use a water resistant adhesive strip, while others need wall mounted hardware installed.
Shower soap holders:
Shower soap holder pictured: 3M Command Soap Dish with Water-Resistant Strip, 1-Dish, 1-Strip
If you hate cleaning up soap scum, try to find a holder that makes as little contact with the soap bar as possible, and that lets water flow through.