I try to set limits for how big my junk hoarding is allowed to get. I've got a storage bag (I think it's from IKEA) for packaging materials. If it can't fit in it, I'm not "allowed" to keep it. It works ok.
I use an old grocery shopping basket is like 3 shoeboxes stacked sideways in size, for bubblewraps, packages I cut out usable side panels before storing in it, empty perfume boxes, empty matchboxes, kitchenpapertowel cardboard rolls etc.