bitbucket.org/hibbelig/tablist
This very minimalistic plugin allows you to create a tab (file? view?) that lists all tabs (files? views?) in the current window. You can move down/up with n/p or j/k and you can select the current one with Return and you can quit the whole thing with q.
I find that a list in this format is easier to digest than the horizontal list of tabs across the top of the window.