I wouldn't describe it as an obsession, so I don't think he's a full-blown pica cat. He leaves our bag-lined trash cans alone, but if we leave out a brand new plastic bag on the floor after a shopping trip, he might rub his face on it or autograph it with his teeth. It turns out to be pretty easy to keep those away from him. This might be partly because he rarely jumps up on anything.
He jumps up on the couch or a desk chair, sometimes the bed, once in a great while he'll try stepping from the couch to the coffee table. I've never seen him jump up on anything else. No kitchen counters, no bathroom sinks, no desks. He prefers laps and nests made of blankets, and he's a pretty good lap cat.
