My first career as a cruise ship entertainer had me sailing all over the world, living and working aboard these large floating resorts for six to eight months at a time. After years of roaming the world’s ports and experiencing every ship and shoreside scenario that you could imagine, I became adept at packing a single suitcase to ensure a comfortable life at sea.  Although living on a ship long-term is different from taking a 10-day cruise, crew and guest cruise packing lists are similar: Both emphasize items that make sailing more comfortable and easy. Whether you’re embarking on a world cruise or just escaping to the Caribbean for a quick trip, these essential travel accessories are what my fellow seafarers and I would suggest bringing to make life on the water all the more comfortable.…