When I'm in my working tab group, that's like 8 tabs or so. Most of the tabs in the storage groups are months old (more like bookmarks I didn't have to hit Cmd+D to save)
Back when I used to use tabs as bookmarks, I would routinely get to >700 open tabs accumulating over the months. It was a useless agony. Pocket was a godsend for me. The urge to let tabs linger is still there sometimes, but it doesn't get over 20-ish nowadays. Sticking to GTD workflow helps too.
When I'm in my working tab group, that's like 8 tabs or so. Most of the tabs in the storage groups are months old (more like bookmarks I didn't have to hit Cmd+D to save)