After more than a dozen cruises, I have found that booking interior staterooms is usually the best investment for my vacations.

Still, some cruise ship interior cabins are better than others. Several of the best inside staterooms feature additional floor space, making them roomy enough for a family of four.

Insider's writer sailed on a Carnival Radiance cruise ship in an interior cabin and thinks the 185-square-foot room is the best deal for a quick trip.

Opting for an interior stateroom is typically the most affordable way to cruise, but not all inside cabins are created equal. Check out which accommodations offer the most bang for your buck.

For many of the first passengers on Royal Caribbean’s Icon of the Seas, ... There are 28 room categories; the most basic accommodations are 157-square-foot interior plus cabins, ...