Customization is nowadays one of the most commonly sought after aspects when it comes to the purchase of any device or product of a permanent nature, which is to say, something that will be used for more than a few months. You will notice this trend exhibited in the purchase of automobiles, with most manufacturers offering numerous accessories, as well as aftermarket designs that allow for a lot of freedom when it comes to the alterations of the standard design. In addition you will see things in the creation of custom walk in showers, with a number of additions showing up on a regular basis.
One of the typical additions to most showers, something so ubiquitous that it a shower is nowadays rarely without them, is the inclusion of shower shelves, which are among the most convenient storage media for shower paraphernalia that is likely to be encountered. These items are simply so convenient as to be nearly essential and many shower manufacturers actually employ and install a shower shelf in numbers as a matter of course.
As well as the shower shelf you will also be seeing a number of other shower heads being installed. These are nowhere near as essential as shelves, but they allow for the flow of water to take place from a number of directions that have their own particular use methods in store, such as the side nozzles and the detachable showerhead with its own hose extension. These additions are themselves useful, but not quite indispensable and therefore are a fair bit rarer than shelves.
If you take the time to scan the market for yourself you will notice a huge number of other customization options that in some cases enhance the utility of the basic shower system and in other cases simply add certain aesthetic options that allow for a truly interesting shower experience. Thus the whole customization option is itself as variable and changeable as the wind, depending entirely on the whims of you, the reasonable home owner, and your particular tastes.