I do a lot of research for my job; I often open up 30 new tabs in a matter of a minute, and then slowly work through them, a little bit like a checklist, vettin

I do a lot of research for my job; I often open up 30 new tabs in a matter of a minute, and then slowly work through them, a little bit like a checklist, vetting the information in each one. I can imagine using a similar process for even larger number of tabs, but you're right that it gets a bit unwieldy at some point. That being said, Tree Style Tabs in Firefox makes mentally handling large numbers of tabs very easy. Without it, my workflow would not be functional.