Some of the things you'll need to do before your cruise take time—for instance, obtaining travel insurance and the proper documents; other details, like packing, may seem relatively simple, but can expand in significance if you leave them all for the last minute. You'll sleep better if you plan ahead. By breaking your preparation down into manageable chunks, you'll have plenty of time to get ready and won't be frazzled as your cruise date approaches. It's much easier to leave your worries behind on the dock when you plan with care.