Step 3: Something in, something out
Something in, something out is a tried-and-true organizational method you should only employ once you have finished an initial round of decluttering and are moving forward into a more organized lifestyle.But it's pretty basic: When you get something new, get rid of something old to make space for it.
If you're following the Organizational Triangle's rules, you know there needs to be a spot for everything, but space is finite.Don't cram too much into your shelves and drawers or else they'll end up cluttered, too.
If a lot of items fit into a space, that's great, but in most cases, you need to be strategic about how much stuff you accumulate.If you can only use one of a thing at a time and you're committed to following the above rules about putting every item back in its place when you're done using it, there's no point in having more than one.
Accumulating multiples of objects only makes it easier for you to slack on the rule about putting things back where they belong after use.Following a something in, something out rule can also act as a check on your impulse buying habit, since you'll know that buying something new means getting rid of something old.