When we went last December I decorated for Christmas. Took white lights and hung them around the window, Disney clings and green Mickey heads. I noticed a few others decorated in our resort (POFQ), but POR has way more decorated windows.
Going again in Sept/Oct for DD's 5th b-day. Planning on going all out and decorating the window, door, room walls, bathroom, mirrors, etc. I can't wait. I plan on it being a surprise! After check-in I will be sending DD and her father to the food court for drinks (or something). I will sneak up and QUICKLY decorate. Plan on telling her that Mickey and friends decorated for her b-day visit. Hoping to find a door cover-up themed after Princesses or Mickey! Also, hoping to find pink lights for the window. Gotta start digging in the attic!