Here are six things I'd never do on a cruise after working on them for three years. So, even though I enjoy lobster, I stick with the items without the upcharges. Related storyI prefer to buy as I go and take advantage of happy hour and other drink specials that are available on certain cruise lines. AdvertisementSome cruise lines are better than others at wiping down commonly touched surfaces, but I don't take any chances. Wear my room key around my neckI never walk around the ship with my room key around my neck, and I especially never do this when on land.

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