This is definitely an important tip. Be sure to pick up The Times Guide near the entrance to each Walt Disney World park. This guide is released every week and contains that week’s park hours, parade and show times and times and locations of character meet and greets. But because times can change (even on that day, depending on crowd levels and weather) also keep an eye on the "Tip Boards" which can be found on your maps. (They're usually centrally located in each park).