We have not had a Carnival coupon book tho we have had books from other lines. We have not used any of the offers. They have been discounts on spa services, photography or high end shop items. I think we have used some for wine in the MDR.
A Bad Day At Sea [with power] Always Beats A Good Day At Work
Alaska 2014 - haven't picked a cruise yet
Carnival: Glory 2004, Destiny 2008, Splendor 2009, Freedom 2011, Valor 2012, Dream 2013
Celebrity: Summit 2011
Princess: Ruby 2010, Caribbean 2013