Take passengers on a road trip? Where are they going to sit!
We've all seen them. The cars in the parking lots with a view through the window that says: "I throw absolutely nothing away. Ever. Hold a gun to my head and that fast food cup, empty wrapper of gum and discarded air freshener will still be there!"
If your backseat resembles such a scene, your disorder may have entered "mess" territory. We'll give you a pass if you own an RV, but if this is a four-door we're talking about, then no. For your own safety (and that of your passengers) find time to clean out the car. Nobody's backseat should resemble a Dumpster.