I suggested this to my 2dd's yesterday and they have spent the whole time since doing so! We leave April 21 so they made a calendar for March and April.From the 21st which is day 0, they counted backward to March 1st and wrote in the # in every square so on todays date ( the 4th of March it says 48 days to disney)So now every day when we look at the calendar we know exactly how many days are left until we leave. They drew disney characters all over the calendar and colored them in,just make sure to use black marker for the #'s so they show up under all the artwork! They have had a geat time fine tuning this and have made a couple each, we will be giving one to grandma and grandpa as they are going also. Really gets them into the Disney spirit!