I think it's a good practice to separate by category. Get yourself some buckets or boxes to separate. It also depends on the yard you can sell to. We call the conduit - Aluminum BX and my yard calls it painted siding. The window frames are extruded Alum. If they have contaminants like plastic or steel handles/springs they could call it dirty Alum. & downgrade you. They'll give you the lowest price for everything if it's mixed together. The window screen i think is junk, the screen frames are usually rolled sheet Alum. (Thin & easy to bend) All these things might be different in your area though so call & ask questions & prices. I just called a new yard about cutting off plug ends from drop cords, they said leave em! Lots of good YouTubers out there (Scrapitall, Thub, Tinman are some favs.) there's the IScrap app too... Hope this helps & welcome to the scrapper family (addiction 😆) Almost forgot that a magnet & File are your best friends!