I do wish there was a way to make carry-on disappear, although I know that most of you folks live out of it on the road. The solution? Eliminate the overheads and make everything fit under the seat (except for the bulkhead rows, where there is no "under the seat.") Of course, that would generate a war for the few overhead spaces, pitting actual bilkhead sitters against their elite fellows who got on first. Oh, well.