Comment by anticorporate

Honestly, very little if anything.

I would double-check my offline backups of everything I care about (personal files and professional projects, as well as local copies of music and videos), be sure my local maps are up to date for directions, and perhaps grab new videos from a YouTube channels to have some new entertainment in case I wasn't able to get anything new for a while.

Otherwise, there's not much I'd want. Presumably my local library would still have books, and the radio would still carry news. Most of what I find valuable on the internet are things that refresh in near real-time like message boards and news, or aren't really data to be backed up so much as services I use like ordering food or checking my bank balance.

Having recently gone through over three weeks of power, internet, and cell service outage with Hurricane Helene, at no point was I tempted to go into town and download me some more internet for use offline.