Bin boggled: Can I recycle that or not?

Let's sort this out. Here in the Bay Area, we're all doing a pretty good job with recycling the basics: bottles, cans, paper. Kudos to us! But when it comes to that pizza box, your broken bathroom mirror or a mysterious lipstick container with plastic/metallic casing and residue of Ravishing Rose, our environmentally responsible brains start to hurt.