I don't use a spreadsheet. I use TripIt for things like hotel & airline confirmations & a calendar app on my phone that lets you color code entries. I easyWDW & enter each park's hours, parade/firework & if it's recommended or not for each day of my trip & any adr's I have in to the calendar app. The only time I stick to any sort of a schedule for what park on which day of the trip is if someone is with me. If I'm solo I determine what park each morning based on which parks are recommended & my mood & have been known to change my mind by the time I get the bus stop or park hop to another park after just a few hours.