Try the portable steamer, I took SONNY's suggestion and brought one on my last cruise,and it worked great,it took me about an hour to work on all formal clothes for the family of six , and other clothes I just let the Downy do it wonders.
2006 - Mariner of the Seas
2009 - Independence of the Seas
2010 - Liberty of the Seas
2011 - Navigator of the Seas
2011 - Jewel of the Seas