Much to my dismay, my apartment building recently canceled their recycling program. My household generates a fair amount of waste aluminum cans that we were previously sending to the local recycling plant. Instead of going out of my way to take large bags of leaky cans to the recycling plant, I was wondering this:

What are the best uses for aluminum cans/foil? I was thinking about building a tool in my detached garage/workshop for melting the aluminum down, but don't know what I would do with it once it is cast.