I used to be a G & T lover, then discovered vodka and tonic goes down just a bit smoother. And, oh yeh, you just gotta' have a boat load of limes. On our last two cruises I ordered a bar set-up and got a bottle of vodka and 3 cans of tonic water. I snitched the limes from my friendly neighborhood bar tender. One trip I was on medication that I couldn't drink with (boo) so I bought a coke card (back when they were only $21) and drank tonic and lime juice all week.
And since we're discussing liquor here, does it seem strange to anyone else that the Grand Princess doesn't carry Corona? They had Dos Xs, but I don't like it nearly as well.