I don't ever seem to recall this, using the cart on the UD to serve drinks, then coming back with another cart for the meals. I do this TPAC (MNL>NRT>ATL>PIT)about every other month and don't recall the cart being used.
Also, they never really dimmed the lights after the meal service, so it made it somewhat difficult to sleep, the lights over the windows were left on the entire flight, never even dimmed for landing either.
Also, they never really dimmed the lights after the meal service, so it made it somewhat difficult to sleep, the lights over the windows were left on the entire flight, never even dimmed for landing either.