Whether you have a tiny bathroom or a palatial master bathroom, space can often feel lacking. The tub or shower, vanity, and toilet already take up a lot of room, limiting the storage opportunities for toiletries, towels, and other important items.

With a few simple tricks, you can maximize the storage potential in the bathroom. There are also some options available to improve storage if you're planning to do a larger renovation.

Look for unused space that could be converted to storage. While pedestal sinks may seem to present no opportunity to keep items underneath them, it's still possible to accomplish this goal. Lisa Kaplan Gordon, writing for the home improvement site HouseLogic, says you can build a cabinet around the sink or purchase a kit to do so. A simpler option is to hang a stylish curtain from the basin, allowing you to keep items out of sight behind it. Molly Miller and Farima Alavi, writing for HGTV, says floating sinks can also be outfitted with more storage by installing floating shelves beneath them.

The space next to the toilet is usually quite tight, but there's still some storage potential there. Jessica Isaac, writing for the home design site Apartment Therapy, says you'll likely be able to squeeze in a feature such as some skinny shelving or a magazine rack.

Shelving can be added in a number of unexpected places. A series of small shelves can provide plentiful storage space for functional or decorative items. Shelving units that are deeper at the bottom and shallower at the top offer plenty of storage without seeming too bulky. Gordon says one option is to install a shelf above the door, where there may even be enough room to keep bulky items like towels.

The walls of the bathroom can be outfitted with numerous storage options besides shelves as well. Manasa Reddigari, writing for the home improvement professional Bob Vila, says one possibility is a magnetic strip to keep nail clippers, tweezers, and other metal items. A simple shower storage item involves suction cups and a small loop of material to hold shampoo, conditioner, and other bottles.

Hooks and rods are a traditional use of the wall in the bathroom, but don't count out any locations. Isaac says one way to utilize more wall space in the bathroom is to add a towel rack above the toilet.

Be creative about what you might use for storage. Miller and Alavi say hanging baskets, wooden crates, mounted cubbies, and salvaged antique cabinets can all work well on the wall. Another possibility is to simply lean a rustic ladder against the wall, using the rungs to hang towels.

The back of the door can be converted to storage space with a hanging pocket organizer to hold small items. Isaac says you can also keep some belongings on top of the toilet, stored in decorative containers or trays.

Floor space can be premium real estate in a bathroom, but items such as portable carts, baskets, or even some small furniture pieces will ensure that it is used wisely. Reddigari says families with small children can consider stepstools with built-in storage, which help kids reach the sink while also providing a home for things like bath toys.

The space under the sink can easily become a jumbled mess of cleaners and other odds and ends, but it can also be organized for efficient storage. Simply add a few baskets and trays to keep things together, and consider hanging containers on the vanity doors as well.

Similar upgrades can help free up space in the bathroom and make it look much more organized. Miller and Alavi say canisters are a good way to corral small items, such as cotton balls or razor blades.

If you're looking to do a major renovation in your bathroom, some work will free up more space or provide more options for storage. One option is to go deeper into the wall to create a recessed shelving area or medicine cabinet. The magazine Family Handyman says you can also replace an existing medicine cabinet with a larger one.

Depending on what's next to the bathroom, you may be able to steal space from an adjacent area to improve storage space. For example, you could expand a foot or two into a nearby closet to create built-in cabinets in the bathroom.

Another option is to upgrade your toilet to have it partially hidden in the wall. Gordon says wall-hung toilets open up more floor space by putting the tank and plumbing out of sight. You'll just want to make sure you include an access panel to easily get to these crucial features when necessary.