The comment about the aircraft made me remember a few things:
1. The lights get dimmer/brighter gradually, which makes waking up/dozing off much more pleasant.
2. The curtains between cabins and between the cabins and the galleys were closed all the time. This (and probably the carefulness of the crew) meant I didn't hear a squeak from the galley all through the flight (and I was in row 12).
3. I don't remember hearing the chimes except once on final approach to indicate we were landing very soon (and that was very late, I'd say we were on the ILS and at less than 4000'), and just before takeoff.

Overall, I was impressed with the state of the aircraft.