This just in from Jim Korkis:

[I was reading an interview in a British magazine with Costume Designer Penny Rose, who created the pirate outfits for the Pirates of the Caribbean movies. When she did the second and third films, one of the first things she did was to talk with actor Johnny Depp about any changes he would like in his Captain Jack Sparrow outfit. His response? "My darling, Jack Sparrow is Mickey Mouse; he doesn't change his clothes." However, the character did end up with a few more belts and bling anyway. ]