I throw away practically nothing. I have 2 containers (costco size containers from mixed nuts): 1 for salvaged screws and 1 for salvaged bolts. I have smaller containers for washers and nuts. After that, I have a small shelf system that I built from MDF trim and hardboard where I keep the 1 lb boxes of fasteners from the big box stores. I have very few nails. Most of my boxed screws are Phillips head with lengths from 3/4 to 1.5 inch. I then have a 1 lb box of 3 inch torx head screws. I was fortunate (?) enough to have a contractor leave a 20 lb box of drywall screws (1 5/8" I believe) after they finished my job. I, nor any of my friends, will ever have to buy drywall screws for the rest of our lives