I find myself working on a code project with TONS of open tabs, because I need to work on 20 files simultaneously and they simply do not fit on-screen, even on my large 27" high-res monitor.
I would LOVE to group my tabs just like I group bookmarks on my browser, in folders, so for example on a client-side project, when I’m working on several components and controllers, I would group all the tabs which are related to the same component (HTML, JS, CSS) and create a MUCH more efficient environment to work on.