melissa, we too have older kids, our son will soon be 24 and our daughter is 20.
If you don't want to miss your 75 days out window you could get yourself a countdown timer like I have that counts down the individual days. I've never made Palo reservations before so I don't know how hard it is to get in.
We did go to Palo brunch on our last cruise but our friends made the reservation. We plan on going to Palo for brunch on this cruise and I will be making a reservation in advance. Since I am a returning cruiser I can make the reservation at 90 days out from sail date.
Since it is your first cruise I don't know if you will want to miss out on any of the dining room experiences

The menus and other special events will be different on each evening of the 4 night cruise, so you might want to give that some thought.
I have never used the spa before so I can't answer spa questions for you. I have taken a tour of the spa before though and always say that I am going to use the Rainforest room but so far I've not done it.
Nassau? Hmmm, well everyone has their own ideas there. Have you ever been to Nassau before? Quite often we stay on the ship because Nassau doesn't really interest us that much.
I think if you've never been there that you really should get off the ship and experience some of the local flavour (<~~~ u because I am Canadian

)
We did the escorted Atlantis aquarium tour before and enjoyed it but you can do the same thing on your own. Now we just take a taxi over to Atlantis, hang around for a few hours either in the aquarium or the casino and then head back to the ship.
Are any of my answers helpful at all

Or are they confusing you even more
