Yes, the Homemade FE Gift thread can make you think you can't participate...just check out some pages for ideas (if you are crafty) or the regular FE thread for other ideas. My stuff will NOT be that creative, it will most likely be purchase instead of crafted.
As for our excursions, I think Key West on our own as well, would like to do the trolley where you can get on/off when you want, and to see the southern most point of the US. No idea on Cozumel and Grand Cayman. DH is not thrilled about getting off at Cozumel unless the "climate" changes from right now, and that is where DS has been most excited to go!
Excursions also depend on the financial situation. My desktop just got the "blue screen of death" so hoping my work can fix it tomorrow, otherwise, it's time for a new computer AND took DD to the orthodontist today, need a palate expander/rtainer and that is a pretty penny (of which insurance covers only 1/2!)
For CC we will just hang on the beach, do some snorkling and I think DS wants to enter a crab in the crab race again. I am hoping to do the Galley Tour on the ship and maybe a few more "mom time" things. DH went to a beer tasting last trip while I took the kids to the movies, so I think this is my turn for some kind of tasting...wine, beer, martini....
Other than that, I'm just looking forward to relaxation instead of checking it all out in just 3 nights like the last cruise.