The slide will be closed if the weather is too windy or the see if too rough (which one causes the other I guess). I have been on week cruises where the slide is only open one or 2 times.
You have to say something really quickly about the towels going missing. The first cruise that we went on that had the towel policy, we didn't relaize that the towels waiting in the cabin were supposed to be ours for the cruise. We assumed they were for pool use and that we would get new ones each day, so we left them by the pool. We quickly realized our mistake and told our cabin steward and he was able to get us replacements without charging us.
You definetly need to watch your sail and sign account. You can review it on the TVs in your cabin through out the cruise. Its easier to do it as you go then to try to remember who ordered what at the end of the cruise.
Carnival Cruise Lines:
Fantasy 90, Celebration 95, Victory 05, Conquest 05, Spirit 6/06, Freedom 6/08, Holiday 7/08, Victory 6/09, Valor 9/09, Dream 6/10, Splendor 8/10,Conquest 8/11,Magic 11/11,Triumph 4/12,Spirit 7/12,Freedom 11/12, Triumph 2/13 - The fire cruise
NCL Dream October 2006, RCCL Mariner OTS June 2007, Celebrity Silhouette 2013