What to do with things an ex left behind
This is a different problem from the box of things that remind you of someone, even though they end up in the same closet. A photo or a gift carries a feeling that is genuinely yours to work through. A toothbrush, a hoodie, a stack of unopened mail is not carrying a feeling at all — it is just someone else's property, sitting in your home because a relationship ended before the logistics of moving out got handled. That is a much smaller problem than it feels like, and it has a plain answer instead of an emotional one.
Why this one is easier than it feels
The discomfort here usually is not about the object. It is about what asking for a handoff, or offering one, seems to imply — that you want contact, that you are making a thing of it, that the ending was not as clean as everyone agreed to pretend. None of that is actually true. Returning someone's charger is not a conversation about the relationship; it is closing an open logistics item, the same as you would with a colleague who left a jacket at your desk. The awkwardness people brace for is almost always bigger in their head than in the one message it actually takes.
Sort what is here before deciding anything
Not everything left behind is the same kind of object, and treating a phone charger like a family photo — or the reverse — is where most of the anxiety comes from.
Ordinary, replaceable things. Clothes, toiletries, chargers, books. Cheap to replace, easy to part with, and nobody is genuinely upset to lose one. These can move fast.
Things with real value or a document trail. Electronics, expensive equipment, anything with a name on a receipt or a warranty. These deserve a slightly more careful handoff, because getting it wrong is a bigger deal for both of you than a lost t-shirt.
Things that are not really "theirs" to reclaim. A gift once given, or something bought together and already settled by use — the person who kept living with it, kept it. These do not belong in this pile at all; they are yours to decide about like anything else you own.
How long is fair to hold onto it
There is no universal deadline, but there is a useful test: has a reasonable chance already been given to collect it? One clear message, sent once, naming what you have and a rough window to arrange pickup, is a reasonable chance. You are not obligated to keep asking, keep storing, or keep a shelf free indefinitely for something you did not choose to have in your home. Waiting a long time out of guilt does not make the eventual outcome kinder to anyone — it just means the box sits there longer, taking up space that has nothing to do with either of you anymore.
Sending the one message
It only needs to say what is being held and how to get it — not an opening for anything else. "I still have [item] — let me know if you want it back, otherwise I'll donate it by [date]" does the whole job in one line. A clear deadline is not an ultimatum; it is what turns an open-ended obligation into a closed one, for both people. If there is no reply, that is an answer too, and it is not one you need to chase.
What you are allowed to do if nobody responds
Past a deadline you actually communicated, the object goes back to being an ordinary decluttering decision. Sell what has resale value, donate what is still useful, and let go of what is not — the same sorting that applies to anything else you own that you did not end up using. This is not a punishment or a message being sent; it is simply what happens to unclaimed things everywhere, from lost-and-found bins to storage units past their due date. Nobody forfeits a right to be treated fairly by not answering a message, but they also do not get to leave an object in your home indefinitely by staying silent.
The one exception worth slowing down for
If the object has meaningful financial value, involves a shared pet or a child's belongings, or the situation is not a clean breakup but something with safety concerns, skip the informal approach. That is worth handling carefully, sometimes with a third party or in writing, rather than folding it into an ordinary declutter decision. Most things left behind are not this category — most are a hoodie and a charger — but it is worth noticing when something actually is.
The one thing worth doing before it leaves
Whichever way it goes — handed back, donated, or discarded — a quick photo before it leaves the house settles the question for good. It is not for sentiment; it is so that if it ever comes up again, you have a plain record of what there was and when it left, instead of two competing memories of who had what. Kept keeps that kind of record next to a date, which turns "I think I gave that back" into something you can actually check instead of relitigate.