Use this hack on a hot day to get some free ice cream. It might be tempting to shell on at that Ben & Jerry's booth, but you actually don't have to spend any money to get your hands on an ice cream cone. You can usually get free soft serve wherever it is that you would normally go for dinner, such as the buffet. However, check ahead because some cruises have recently changed their policy.
For example, Carnival no longer offers the service. Although, other cruise lines, such as Royal Caribbean, still allow their guests to serve themselves up a free ice cream cone as long as it's not name-brand.