Found a great item at my grocery store the other day. Crystal Light to Go. They come in boxes of ten little individual packs of flavored Crystal Light. You add them to a 16.9 oz bottle of water and instantly you have lemonade or raspberry ice (these were the two flavors I bought). I carry a couple in my pocketbook wherever I go. The individual packets are about 2 inches long and about 1/2 inch wide, easy to travel with.
Crown Princess March 2017
Explorer of the Seas October 2013
Caribbean Princess July 2006, May 2010 & November 2012
Monarch of the Seas November 2008
Crown Princess November 2007
Celebrity Zenith November 2005
Enchantment of the Seas August 2004
That's what I did on our last cruise. I only like to drink plain water if it's really hot outside with lots of ice. Now that's delicious. The steward brought a large bottled water every day and I would mix a bottle and keep it in the fridge. It wasn't individual packets though. It was tear off tops like coffee creamer, but the Crystal Light mix matched the bottle size so it worked out great. Raspberry's my favorite.
But in the last couple of years I have developed two new addictions: Hazelnut Creamer and Splenda. I'll need a suitcase just for my can't-do-withouts.
Those are cool. They have them @ the hospital in the cafeteria now & they have these little punch cards too where you get 1 free after you buy so many. Easy to mix up in a hurry if you need something sweet.
On our vacation in February I was not able to find the small packets so I took the regular...poured a little in a bottle...shook...put in the refrigerator or I poured over ice in an insulated drink container... Instant ice tea or lemonade.. I intend to take lots of them for our next cruise.