What's "THE MOST" important thing you bring along on a cruise, that if you forgot to pack it, it would make you crazy! Discounting meds, things like that.
I think the all important power strip, might do me in, with all my plug ins...
I have seen people carrying pillows onboard, once I saw someone bringing on a chair..Don't ask me why, no one could figure that one out. Another time we saw, someone with, like a big air purifier. Someone I know brings along her own pillow cases.
Your must have?