The ideal option, of course, would be when choosing a thing, for example pants, to put them on the character immediately without undressing him.
Transfer things in old pants to new ones.
If there is not enough space in the new ones, then throw things on the ground

1.2.0.98:
Now you need to either throw things on the ground and then put on new ones and pick up old items.
Or remember what items were in the old things and take them from the arsenal, and hand over the old ones along with the contents