I searched around the forum before posting this and couldn’t find a topic specifically about this, so hopefully I didn’t overlook one 
. If I did, please leave a comment.
I would like a small QoL feature that lets us locate objects our household already owns.
Especially with larger households and bigger houses, I sometimes have the problem of simply not knowing where something went. Per example a tablet might suddenly be inside another Zoi’s inventory, a laptop could have been placed somewhere on another floor, a book might have been left on a different lot, or something could be sitting inside the household inventory.
Sometimes I genuinely don’t know whether I misplaced something or the game did xD
“Find Household Item”:
There could be a small magnifying-glass button somewhere in the Household, Inventory UI or Phone that opens a searchable list of household-owned objects.
For example:
Tablet — carried by Yuna (in her inventory)
Laptop — Home Lot · Floor 2 · placed on desk
Book (Then the title of the book) — Gaon Café
I deliberately wouldn’t have the game say things like “bedroom” or “living room”, because our rooms aren’t actually assigned that way and players can build however they want. An open-plan room or a desk inside somebody’s kitchen would make that messy pretty quickly. Especially since the game doesn’t distinguish between an open kitchen or a living room locationwise.
Instead, the game could simply use information it already knows: lot + floor + object/container + owner.
What happens when we press “Locate”?:
If the object is currently placed somewhere on the active lot:
Locate → move the camera to it and highlight/pulse the object for a few seconds.
If another Zoi is carrying it:
Tablet — carried by Yuna
→ select Yuna and highlight the tablet inside her inventory.
If it is somewhere on another lot:
Book — Gaon Café
→ offer “Show on Map” or possibly “Travel to Location”. Once we arrive at the lot, we can click the function again and have the camera zoom in then and highlight it.
If it is stored:
Painting — Household Inventory
→ open/highlight it directly there.
There could also be simple filters such as:
Electronics | Crafted Items | Collectibles (like rocks) | Personal Objects (more about this below) | All
This could work really nicely with object ownership
Kjun has already talked about adding object ownership/permissions for individual Zois, and I think a locator could complement that system really well.
For example:
Owner: Minho
Item: Laptop
Current location: Yuna’s inventory
So when Minho’s laptop mysteriously disappears from his desk, I can finally discover exactly who took it.
“…Yuna.” 
Optional: Recover inaccessible objects
Maybe there could eventually also be a “Recover Item” option, but only if the game detects that an owned object is genuinely inaccessible, stuck or outside a valid location. Similar to the “Emergency Rescue” for a Zoi, we could “safe” an item.
Something like:
«“This item appears to be inaccessible. Return it to Household Inventory?”»
I wouldn’t want this to become a free teleport button for everything, but it could be really helpful when an Early Access bug makes an object disappear somewhere we can’t reach. I have items disappear inside counters per example. Of course it would be better if objects don’t bug to begin with, but glitches can always happen.
It’s definitely not a giant gameplay system, but I think it could save a LOT of:
“WHERE DID MY TABLET GO???”
Please feel free to add more ideas/improvements/constructive criticism
Would be funny if the game would then tell “stolen by XYZ” and then you could go and argue with this Zoi to get it back. I started to not use tablets for the most time because they are always stolen by the babysitter if you have babies or toddlers in your household.