But don't buy a tuxedo just for the trip. If you do want to dress to the nines, many ships offer tuxedo rental services. Even on the most formal of ships, a dark suit and tie are fine for the dressiest occasions. Cruising is ideal for people traveling alone, because it's so easy to meet other people. In fact, most ships have parties just for singles early on, so you can start to be involved right away.
Most ships also have single cabins as well as single rates for double staterooms.
In many cases, a cruise line will even find you a roommate to share a double if you ask them. Most ships have 110-volt outlets in the staterooms. Many ships even feature hair-dryers in your cabin. Some ships' dining rooms can accommodate all passengers in one seating, but most ships have two seatings which differ only by time. Whichever seating you choose, remember that one of the best ways to make new friends is to ask for a large table.