Recycling your scrap metal is not only good for the environment, it can be good for your wallet. Non-ferrous metals, like copper, contain no or little iron, so they have a higher resistance to rust and corrosion. While you can recycle both ferrous and non-ferrous metals, non-ferrous metals typically are worth more. If you aren't sure where to find copper, consider exploring old items in your home first. Here are a few places you can find copper to recycle. Now that you might have purchased a new air conditioning system for your home, you could be wondering what you are supposed to do with the old air conditioning system that you have.