My 12yo daughter is as tall as me. How the tables turn...
When I do the laundry, each kid gets a wardrobe‑ready basket and they have to put it in there themselves. I think that is not asking too much from a 12yo (the 8yo does it as well). Well, she started to not even take the basket into her room, and after many, many friendly reminders I made a new house rule.
Laundry that has been in the hallway for 2 days is free for all, and I announced it several times... then
I took her favorite T‑shirt and wore it all day, even to pick her up from sport.