Purchasing Online

• Cruises can be purchased directly through the cruise line itself, or through a third-party provider. Purchase your cruise online to have the best chance of getting a free upgrade. Some travel lists such as TravelZoo.com have weekly lists of the top travel deals. Many of these contain cruise specials that offer complimentary upgrades and shipboard credits upon purchase.
  
  When you purchase a cruise online, there is often a box during the check-out process that denotes a space for a discount or cruise upgrade code. Search coupon websites like RetailMeNot.com to find special cruise upgrade codes that will work for your cruise line.
  
  

Travel Agents

• Look for a travel agent that specializes in cruise sailings. If the agent has a special relationship with a particular cruise line, he may be able to pass along specials savings or upgrades to you, the customer. Agents can also put in a special upgrade request to the ship's revenue department. Some travel agents will even guarantee the rooms that they book for you, offering to carefully iron out any problems that may arise concerning your accommodations during the cruise.
  
  

Early Check-in

• Arrive at the ship port early and check in as soon as possible. Inquire about the occupancy of the ship and the availability of a room upgrade. Tell the staff if you are celebrating a honeymoon, anniversary or birthday. They may choose to upgrade you for free, provided the ship's rooms are not sold out. If you are not celebrating a special occasion, you may be offered a discounted upgrade for the week.
  
  

Complaints

• While it is distasteful to make up complaints or problems with your cruise cabin that are untrue, the management staff will want to know about any legitimate problems that could occur during the course of your cruise. Tell a staff manager if the cabins around you are too loud or if there are any maintenance problems that need to be resolved. Much like a hotel, the staff may choose to move you to another room to maintain good customer service. If you are offered the chance to move, ask for a room upgrade to offset the relocating inconvenience.