For artwork, the way I keep things nice and clean is to take a picture of the artwork with our digital camera (only artwork that is really cool or that we especially love/cherish for other sentimental reasons) and then - at the end of the year - I make a book of all the artwork (nicely bound, picture book). That way, we don't have a lot of art lying around and yet, it is still available for display in a more organized manner.
Done, and done. (op here).
I just stuffed 3 garbage bags full of things for the trash. Several items were opened, but never used, little birthday gifts from June. Markers, cups, a checkers set.
So I'm willing to pitch unwanted stuff. there's just too much purportedly "wanted" stuff in this house, grrrr