What You'll Pay: As at land-based resorts, laundry and dry-cleaning charges on a cruise can be steep (approximately $3 to $5 to wash a shirt, for instance). Check to see if there is a self-service launderette, and use it. (Typically, washing and drying one load of clothes comes to between $2 and $4.)

Savings Tip: You have two options here: Pack enough changes of clothes for the cruise and do the wash back home, or bring your own travel-sized detergent, wash necessities in your cabin sink and hang-dry them in the shower. If you're really motivated, you can also find a laundromat in port -- it could be a cultural experience! #inCruises