A simple tip for those with many tabs open: Shift + Select multiple tabs and drag them into a new window. That feature helps me clean up 100+ open tabs in Chrome.
Wow, thank you. These life-changing tips really need to be much more easily discoverable.
The browser could check your tab patterns and offer tips. For example, if you have a hundred of tabs but navigating mostly within a limited set of them, a cartoonish fox would appear in the bottom right corner, asking if you need assistance