If there’s one thing that really gets under our skin, it’s cruisers who wake up early to reserve a row of seats by the pool with a towel or piece of clothing and leave them unattended — for hours. Don't set aside chairs for yourself and then go to breakfast, and the gym, and the spa, without expecting to get a variety of dirty looks when you finally turn up to claim your prize.
How to deal: Not only should you not be the person who "saves" chairs for later in the day, you also don't have to put up with that behavior from other cruisers. If you see lounge chairs that have been reserved with a couple of token items for long periods of time, ask the pool staff if the cruise line has a policy on the issue. Carnival Cruise Line, for example, has a written rule that if a chair with a towel or personal belongings is unoccupied for more than 40 minutes, the staff can remove the items and let you stake your claim.