A bathroom caddy that can dry between uses
Drainage, bottle clearance and a way to clean underneath are the useful details.

Let the bottles set the height
Arrange the products you use and measure the tallest bottle, including its pump. A caddy shelf can fit the body while leaving no room to press the pump or lift the bottle out. Wide caps and refill pouches may also need more space than their advertised capacity suggests.
Keep only the working selection in the wet area. Backups can often stay in suitable dry storage elsewhere. A caddy overloaded with unopened bottles is harder to clean and may exceed its mounting or load limits.
Follow the water
Open drainage is useful, but inspect where water goes afterwards. A caddy that drains onto a surface unable to dry may move the problem rather than solve it. Check corners, seams and removable trays for cleaning access. Soap residue can collect even when the main shelf has large holes.
Material descriptions need to be read carefully. A metal finish, plastic body or woven material can have specific care requirements. Do not assume a decorative basket is suitable for repeated shower splashes. Use cleaning products permitted by the maker rather than harsh chemicals chosen to remove every mark at once.
Choose the mounting deliberately
Freestanding, hanging, suction and screwed designs rely on different supports. A hanging caddy should be used only where its manufacturer intends, not on a fitting that was never meant to carry storage. Suction needs a suitable surface and regular attention; it is not a substitute for a secure support where falling contents could hurt someone.
For drilled installation, use appropriate fittings and avoid hidden services, seeking competent help where needed. Keep the caddy clear of controls and places where it can be knocked during normal movement. The best height is one that the users can reach comfortably without stretching over slippery surfaces.
Make removal easy
Can the caddy be taken down or lifted out for cleaning without emptying an elaborate arrangement? A simple removable design may be easier to maintain than a large fixed unit. Keep bottles stable, wipe their bases as needed and return them only when the surfaces are ready.
Start with one shelf's worth of products and add capacity only if the routine calls for it. More tiers can create more wet corners and more objects to move. A smaller caddy that dries and can be cleaned is often the more convenient bathroom purchase.