Organization
How to Organize Under the Kitchen Sink: A Step-by-Step System for Cleaning Supplies and Everyday Gear
Under the kitchen sink is a small space that gets out of hand fast. This step-by-step system helps you sort, store, and maintain everything from cleaning sprays to trash bags so you can find what you need in seconds—and keep the space safe.
The cabinet under the kitchen sink is a magnet for clutter. It’s dark, awkwardly shaped, and often the place where cleaning supplies, sponges, trash bags, and random bottles go to multiply. But with a simple step-by-step system, you can turn this tiny space into a tidy, functional storage area that actually works.
Why Under-Sink Cabinets Get Out of Hand
Under the sink is one of the hardest-working spots in the kitchen. You reach in several times a day for dish soap, spray cleaners, and sponges, often without looking. The pipes and p-trap take up valuable floor space, and any brief spill or splash can leave drips that mix with crumbs and packaging. Over time, empty bottles, extra sponges, and old rags accumulate. The result is a dark, damp, overcrowded cabinet that makes you wish you had a better system.
Quick Answer
To organize under the kitchen sink: empty the cabinet, sort everything into categories, discard anything expired or unusable, wipe down the interior with a 1:1 vinegar-water solution, measure the space, then set up zones using stackable bins, a tension rod for spray bottles, and an over-door caddy. Maintain it with a monthly 5-minute reset.
Before You Start
Set aside about an hour, and gather simple tools: a screwdriver (for removing old organizers), a bucket, rags, a vacuum with a crevice tool, a spray bottle, white vinegar, baking soda, a tape measure, and a notepad for jotting down dimensions and zones. If you have children or pets, have a child safety latch and a plan for storing hazardous products safely.
Step 1: Empty and Sort Everything
Pull everything out of the cabinet and lay it on the floor or counter. Group items into categories: all-purpose cleaners, bathroom cleaners, glass spray, sponges and scrub brushes, trash bags, dish soap, and anything that doesn't belong (like food storage lids or old jars). This first pass shows you exactly what you have and what you can let go of.
Check expiration dates on cleaning products. Many disinfectants lose their effectiveness after a year or two. Discard any that are expired, separated, or in unlabeled containers. Never pour chemicals down the drain—contact your local hazardous waste program for safe disposal, as recommended by the EPA. If a bottle is half full but you haven’t used it in a year, ask yourself whether you’ll really use it now. Apply the “one in, one out” rule once your new system is in place: when you buy a new cleaner, remove an old or empty one.
Step 2: Clean the Cabinet Before Putting Anything Back
Once the cabinet is empty, vacuum up crumbs and debris. Then wipe all interior surfaces with a 1:1 white vinegar and water solution, which is a safer cleaning choice per EPA Safer Choice guidance. For stuck-on grime, make a paste of baking soda and water and scrub gently. Open a window or turn on a fan for ventilation, and never mix vinegar with bleach or ammonia-based cleaners—that creates toxic gas, according to CDC cleaning guidance.
As you clean, inspect for leaks, water stains, or mold. If you see signs of moisture, fix the leak before storing anything back. If you find mold, address it promptly and make sure the area is completely dry. University of Georgia Extension household cleaning guidance emphasizes that a dry surface is key to preventing mold and mildew. EPA mold guidance also advises controlling moisture, not just cleaning the mold itself.
Step 3: Measure and Plan Zones
Use a tape measure to note the cabinet’s height, width, and depth, and sketch where the pipes sit. This tells you what storage containers will fit and where. Plan distinct zones: