Almost every bedroom has one: a chair, an exercise bike, the end of the bed - covered in clothes that are not dirty enough to wash and not clean enough to put away.
It is not a discipline problem. Your storage has two categories and your clothes have three.
The missing third category
Clean. Dirty. And worn-once-but-fine. Jeans, jumpers, hoodies, work trousers - things nobody washes after a single wear. They have nowhere to go, so they go on the chair.
Give that category a real home
A row of pegs, a hook rail, a small valet stand, or a dedicated hook on the back of the door. Something designed to hold three or four hanging items, deliberately, where you can see them. The moment they have a home the chair empties.
Pegs beat hooks for this
A peg rail with four or five pegs spaced along it keeps garments separate and airing. A single hook with four things on it becomes its own small pile.
Put it where you undress
You don’t need to buy anything fancy. A few adhesive hooks or a single peg rail from any hardware store will do. If it works, you can upgrade later. Not where it looks neatest. If you take your jumper off by the door, the rail goes by the door. Storage that is not where the habit happens does not get used.
Then take the chair out
Once the clothes have somewhere to go, remove the chair if you were not really sitting on it. A surface that attracts clutter will keep attracting it, and the simplest fix is to stop offering the surface.
If you want to keep the chair
Put something on it that belongs there - a folded throw, a cushion. An occupied chair is much harder to drop a jumper onto than an empty one.
A quick weekly reset
Once a week, glance at the rail. Anything that has been worn more than a couple of times goes in the wash. The rail is for airing, not for permanent storage.
Be honest about it
I blamed myself for this for years and bought two different laundry baskets trying to solve it. Neither worked, because the clothes were not laundry. Five pegs on the wall fixed in ten minutes what two baskets could not.
