Now here's something that's really cool. And a bargain at that.
Buy a cruise on the Norwegian Getaway (MIami) or Breakaway (New York) between now and May 11 and you get a voucher for a 3-day or 4-day cruise on the Norwegian Sky (Miami).
That means it's free.
A cruise on the Getaway or Breakaway — Norwegian's newest ships — starts at $489 (per person, double occupancy). The Getaway starts at that price for its week-long 
Caribbean cruises. The Breakaway's starting price (inside staterooms) is $539, for 7-day cruises from New York to Bermuda.
The window in which you can cruise is now through September 28.
The Sky is not exactly a throwaway. Having been on one of those 4-day cruises to the Bahamas, we enjoyed this 10-year-old ship. We'd have enjoyed it even more if it had been free!
Today at Phil Reimer's portsandbows.com: Silversea Special — Silver Select
Norwegian Getaway
7 nights
May 17, 2014
Miami (return): St. Maarten, St. Thomas, Nassau
Inside: $449
Cost per day: $64
www.ncl.com