Hi,
congrats btw on getting the job. Hope you enjoy it.
As per your question, depends really on the duration of the stopover.
For the flight, long haul,
-Ipod
-Make up Bag with moisturising cream, toothbrush, makeup, the usual
-Low heels for the cabin
For the stopover of 1day+
-then obviiously change of clothing
-swim suit
-going out dress
-rarely take another pair of heels as the stilettos i use for the aiport are ok for an evening out too
Bascally, try to take as little as possible.