Every year I do an excel spreadsheet. It's one page with every day listed with an excel "block" for every hour. Then I color code everything from ADR's, Counter Service meals, Fast Pass times, parades, fireworks, etc. I used to carry a copy with me to the parks, but now I just save this file on my phone to view. Works pretty good and it's easy to see everything at a glance and move things around during the planning stages.
I do a big excel spreadsheet too. Color coded with FP+'s, ADR's, parkhours, fireworks times, just about everything we could need on an 11 x 17 sheet of paper. The only difference is that I do print mine out & keep it on me at all times. It's just easier for me to pull out & look at everything at once rather than trying to view on my phone (I'd have to zoom in & out a million times). On our last trip I was checking it on the bus to a park & a lady sitting across from me started laughing saying she does the same thing.We had a nice conversation & bonded over our crazy spreadsheets.