Bringing a travel mug on a cruise is a highly recommended "pro-tip" for several logistical and sanitary reasons. Cruise ships typically provide small, 6-to-8-ounce ceramic mugs or plastic cups at the 24-hour beverage stations, which are inconvenient for guests who want to carry a larger amount of coffee or water around the ship. A personal insulated travel mug keeps beverages at their desired temperature for hours—essential for those who enjoy hot coffee on a breezy balcony or cold water by the pool. Furthermore, travel mugs with secure lids prevent spills on moving ships. It is important to follow modern sanitary protocols: cruise lines strictly request that you do not fill your personal mug directly from the communal dispenser. Instead, you should fill a clean, ship-provided cup and pour the liquid into your travel mug. Additionally, having your own vessel encourages hydration during shore excursions, where bottled water is often sold at a significant markup.