I have loads of Ikea boxes for the DCs toys, but found it difficult to get them to put things in the right boxes. They are only 3 and 5yo.
I would sort out the boxes and a week later everything was all jumbled up again.
Now I have made stickers, with pictures copied from this website so that they know what goes where.
DD helped chose the stickers and put them on the boxes. DS loves sorting out the toys at the moment. Will probably not last long, but while it does, I feel very smug.