Good Question: How to Recycle Milk Cartons (w/ Plastic Lids)?

(Note: Include a pic of your problem and your question gets posted first. Email questions and pics with QUESTIONS in subject line to: green(at)apartmenttherapy(dot)com)
This question comes from an anonymous friend: How do you recycle the cardboard milk cartons that come with plastic screw-on caps? With the cardboard? With the food scraps? Where?

When our friend asked this seemingly simple question the other night, we were stumped. We wanted to say food scraps (because that's where food-soiled paper and cardboard goes), but then we got worried about that plastic cap. Same problem when we thought about tossing them into the paper recycling.

Any answers out there? What do you do with these types of milk cartons?

image via Mountainbread; Flickr.com