For those of you who don't have the beverage pkg (it was given to us by our TA) here's an idea:
You are allowed a bottle of wine each pax, we bring 1.5L each w/o any problem in our carry on.
We also bring a plastic carafe; pour 1/3 wine, 1/3 cranberry and 1/3 orange or grapefruit, add fruit. You can also add some brandy, and viola - Sangria! Stretching out your wine and making it delicious. Enjoy!
Also, being Elite, don't forget the daily 5-7 complimentary drinks.
Here is the info on Captain Club (Elite) benefit:
Captain’s Club daily Elite Cocktail Hour – see Cocktail Hour Menu for details 5–7 PM daily.
Check the link, on Celebrity cruises, for more that you may be missing.