1. Repurpose a file for sports bottles.
To prevent clunky water bottles from falling out of the cabinet every time you open the door, store them on their sides using a magazine file like in this idea from Driven By Decor. Or, you can use a rack that offers multiple levels of storage.
2. Or, use a file for canned goods.
This clever idea from PB&J Stories is similar to the dispenser-like soup displays you often see at the grocery store. Simply stack canned goods on their side in a mesh magazine rack, or in an acrylic dispenser.
3. Use a towel bar for kitchen cleaners.
In this idea at Home Road, a hanging bathroom towel bar becomes a holder for spray bottles when used on a cabinet bar.