On our most resent TALT flight I ended up finding that the blanket bag, if opened in a reasonable fashion makes a great small garbage bag. By the time the flight was done we had filled it up with wrappers and other garbage. It was particularly helpful when a "snack" was served. Much of which went into the bag rather than having it on our tray. As the flight ended we just handled the bag to the FA.

I am sure others have figured the above out but thought I would post anyways.