Ok so I haven't been to WDW since FP+ and
MDE was introduced but the last time I went I had printed out a map that I customized online on Disney's website (I don't think they do this anymore). Anywho I wrote down the park hours and brought a pen with us so I could mark off the rides I had done. I know that's so old fashioned and I still got maps from Disney of course when I got to the parks but it allowed me more easily to keep track of what rides we had done and the hours and whatnot. Each day we went to the parks I would bring the printed maps I had customized for the parks I knew we would be going to. We put them in our bag that is a waterproof one.
Now this upcoming trip I'll be using my phone the majority of the time because of the MDE app (and using the website). I could have my husband use his phone for the OneNote where I could transfer the MS words documents to but I *might* bring my trusty paper and pen with me too