How do they store it?
Do they keep it?
My mom used to admire everything, and it was kept for awhile, but was eventually trashed. Today it would be recycled.
I've seen some teachers on Pinterest who put everything in a scrapbook for the year (actually, I think that's what my grade primary teacher did).
I've seen some moms scan all artwork to keep a digital copy.
If parents complain or ask your advice, what do you say?