The “One In, One Out” Rule: The Simple Habit That Keeps My Space (and Mind) Clear

Because who really needs five black t-shirts that all look the same?

I’ve always been someone who feels best in a clean, minimalist space. Clutter stresses me out—visually, mentally, emotionally. I’m the kind of person who actually enjoys an empty countertop and a tightly edited closet. So the “One In, One Out” rule? It wasn’t a new idea for me—it was second nature.

But over time, I realized that this simple principle wasn’t just something I did instinctively. It was the reason my space stayed calm and livable while life around me got louder, busier, and more digital by the day.

The Rule, in Case You don’t know yet

It goes like this: for every item you bring into your home, you let go of one.
Buy a new sweater? Donate or sell one you don’t wear.
Pick up a new book? Pass one on to a friend.
New mug, new candle, new pair of sneakers? You get the idea.

It’s beautifully simple—and surprisingly effective.

Why It Works (Even If You Think You’re Already Tidy)

1. Boundaries Without Harsh Rules
   Even though I’ve always kept things minimal, I’m not immune to the occasional online shopping rabbit hole. The “One In, One Out” rule acts like a gentle boundary. It makes me pause and consider—Do I really need this? What am I willing to part with in return?

2. Stress-Free Closets
   Clothes are where I’ve applied this the most. I’ve found that I actually prefer fewer options, as long as they’re the right ones. These days, I’ll sort out several pieces I no longer love, and bring in one better-quality item instead—ideally something secondhand or sustainably made. It feels intentional and satisfying, not restrictive.

3. A Mindset, Not Just a Rule
   Over time, “One In, One Out” has become less of a guideline and more of a mindset. It’s about respecting the space I live in and giving myself room to breathe. It reminds me that more isn’t always better—sometimes, it’s just more.

picture: pinterest

What I’ve Let Go Of Lately

• Trendy clothes I liked in theory but never actually wore

• Old kitchen tools I hadn’t touched in years

• Duplicate notebooks, half-used candles ( I use them up and use the jar for something else, or throw it away.)

• Make-up and perfumes that I've started using but no longer use because I simply have too much. I usually give them away to friends; someone else will enjoy them more than letting them gather dust in my closet.

Letting go has gotten easier. And honestly, every time I do, my space—and my mind—feel lighter.

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The “One In, One Out” rule might sound simple, but for me, it’s a powerful act of intention. It helps me slow down, tune in, and keep only what truly adds value to my daily life. Whether you’re a self-proclaimed minimalist or just looking to feel a little less overwhelmed, I highly recommend giving it a try.

And if you’re already practicing it: Replace one in with three out like I sometimes do? My closet has never been as "empty" and yet so full as it is now. There aren't many items in it, but I love them all and always know what to wear. I’d love to hear how it’s working for you. :)

Let’s talk soon,
xx,susanna