A kindred spirit, though I only have a few hundred tabs, spread across Firefox & Waterfox.
At various times over the last couple of years I have tried to develop ways to deal with them (I have a whole page of links and notes in my OneNote dedicated to this

) I have a plan, at least... and a batch file/scheduled task to back up my sessionstore every few hours so I am never in her situation.
In my searching I have come across people who say they have thousands of tabs, and I always wonder how they get to that point.
This... doesn't make any sense to me. Do people like this just never close their tabs?