You price it well above what any buyer — or even you — would actually pay for it.
The free-trial trap
Once the subscription feels like yours, giving it up feels like a loss, so you keep paying.
The mug study
People given a mug demanded about twice as much to sell it as others would pay to buy one.
Cluttered closets
You can't part with things you'd never buy today — but they're already yours.
Trade-in lowballs
Your trade-in feels worth far more to you than the dealer's offer, every time.
How to spot it in yourself
Before keeping anything — clutter, a stock, a subscription — ask 'would I acquire this today at this price?' If no, you're only holding it because it's already yours.
Declutter as a buyer: don't ask 'can I let this go?', ask 'would I buy this again?'
Be wary of free trials and 'try it for 30 days' — they work by making the thing feel yours before you decide.
You'll forget most of this by next week.
That's just how memory works. Lock the endowment effect in with a 5-minute active-recall session — spaced repetition, no signup.