@zak I donβt have a ton, all things considered, but I back up the irreplaceable stuff to an $80/yr encrypted iDrive bucket. Everything else is re-obtainable, even if it'd be a pain. Honestly, a catastrophic cleanout might be a healthy declutter.
@thomasdorr not sure if you're in a Microsoft house, but FindTime (aka "Scheduling Poll") is now integrated in Outlook. It looks for free time in people's calendars to make suggestions for the meeting options.