BigHeadModeJust realized that having a bunch of immediately-visible things to click on may be making me less productive, not more. The marginal gains in being able to quickly switch tasks may be greatly outweighed by the losses in switching tasks too aggressively from boredom.
I am now running Firefox with bookmarks only in the new tab window. Windows with an auto-hide taskbar.
I don't think I'm ever going back. Holy shit, I'm so much more productive. It also changes what UI I'm looking for in Linux. Suddenly, GNOME or MacOS-like docks make more sense.