An easy way to get a lot of copper? Wait till your neighbor goes to work, take all of his old plumbing and let his insurance pay to have all the upgraded plastic stuff put back in. You'll be doing him a favor by removing it all before the copper bursts.

Or just cut it out of things like motors and such. Theres not really an easy way to get it though. It all involves work. (usually a lot of it). Even doing it the shady (and more than likely illegal) way like the guy in the slammed honda civic that would bring us at least ten buckets of copper tubing every day, you still gotta get out there and work to get it.

And just for the record the first part of this was a joke. Don't get yourself shot or put in jail.