I'm in that period of time where all ADRs are made, FP+ selections are done, groceries ordered, maps printed, etc. and still have 2+ weeks before I can pack.
I always get restless and antsy in that awkward period without any trip prep. I pass the time by watching Disney videos on YouTube (there's a couple that documents their whole trip, and the videos are really cute; username Seeyoureelsoon), and read trip reports here on the DIS.
Hopefully you find something that helps, you'll be there before you know it! Enjoy!
I watch Disney movies, the Destination America specials on WDW, DCL, and DL to pass the time. And sometimes I even listen to the Spectromagic theme song. Reminds me of growing up and yes, sometimes I cry listening to it But I am still 4.5 months out so I have plenty of time to make more ressies and rearrange everything!