As Pam commented, irons are not allowed. Her suggestion of a steamer is a good idea. You may also ask your cabin person to take care of the pressing for you. Celebrity does not have a self servie laundry or ironing area.
In addition to a steamer, I use the steam from the shower to take out wrinkles. I just hang the garment in the bathroom while taking a shower. This usually takes out the wrinkles. I have also found that going on deck will make wrinkles disappear!
I was wondering how that new Downey worked, thanks for letting us know. I will be sure to pick some up before the next cruise :-) I too swear by packing in the plastic cleaner bags, that really works too.
We came back from our trip.. it was great on the Infinity
Sent all my wifes dreses to ship's service and for $15 it was done and she was happy !
Just remember to send by 9am for return the next day and phone your cabin steward to remind of situation