In your shower, instead of collecting shampoo bottles and body wash on the side rim or on the floor, get a rack that hangs over your shower head to store your in-shower toiletries.
Think of walk-in showers with plenty of elbow room and plenty of shower jets coming from all sides as well as an overhead, waterfall style shower head.
The entire bed can be cleaned easily with a garden hose when needed, or placed in a bathtub and sprayed off with a shower head.