I just did it today. Our very first cruise. Thanks to reading these blogs I already saved $$. Bought the DDP for $55 last week for the 11 day cruise on Dec. 30th. Today it was $51. Doesn’t seem like much but for two people 11 nights plus the 18% I saved $103.84. Just canceled and repurchased. I’ll continue to watch especially on Black Friday, thanks to Cobra614 above!