Apartments hate dumpster divers and a lot of businesses will padlock their dumpsters, they have to pay to have it picked up and don't want other people using them. You should ask the auto parts stores in your area if you can check their dumpsters for recyclables. The worst they can do is say no. They may be happy to let you. I haven't been scrapping long and I'm still a little uncomfortable jumping in dumpsters but I've heard you can make hellamoney. I have jumped in a few and almost always find something good. Don't give up!