4. Holland America Line

Happy hour is a little extra happy on this cruise line where, no matter your loyalty point status, you can head to bars and lounges, including the Crow’s Nest Lounge and Ocean Bar, from 4 to 5 pm and order any full-price drink on the menu and your second drink is only $2. (That includes the $104 glass of Louis XIII Cognac.) Most of the drinks aren't that expensive of course, but this deal is pretty unheard of for a major cruise line. And, if you want to order a third drink during happy hour, you'll pay full price again (but if you hurry, you'll get the fourth for $2 ... and probably a case of double vision). Best of all, in the hours leading up to dinner, bars and lounges offer everything from hors d'oeuvre buffets to plated canapés.