As a lifetime hoarder my experienced opinion is Never throw anything away. Give away to friends is a good thing however. There's a very small clump of old Mopar folks I used to run with, back in the day and we swapped, traded, and loaned items almost on a weekly basis. Nowadays we still do the same. Luckily I'm not the only hoarder in the group. If we do sell something to someone in our little crowd it's a 1970's price.
Keep everything is my advise.
