Ok, this thread has great suggestions and is a great idea...my tips.....
Check out the Rainforest Spa- it's not too expensive and is a wonderful experience even if you only do it one day.
Bingo (I'm obsessed but it can get expensive)
Develop a relationship with a server at the Quiet Cove, they will make your trip extra special.
Walk on the deck late at night. It is so beautiful then.
Wine tasting is pretty cool. Sign up early.
Adult entertainment - cabaret acts and theme nights can be really fun. YOU HAVE TO PARTICIPATE. I have laughed my head off on my nights in Rockin' Bar D. Last summer, I was picked for the Gloria Gaynor lip syncing contest. I was shaking with fear. It was so funny. I didn't win but I'm glad I did it.
DCL excursions are well run and usually a great experience.
Get on the ship early. It gives you and extra "sea day". It can get hectic with the drill and unpacking, if you get there early, you can make reservations and use the pool w/o alot of people around.
Hope these suggestions help! Have a blast!
Yoda, please let us know how you like your new job. I'm so jealous!