I have these lines in my .Xresources file (which is sourced by .xinitrc with `xrdb -merge "${HOME}/.Xresources"`):

Shift<Key>Insert: insert-selection(CLIPBOARD) \n\ <Key>Insert: insert-selection(PRIMARY) \n\ Shift<Btn2Up>: insert-selection(CLIPBOARD) \n\ Shift<Btn1Down>: select-start() \n\ Shift<Btn1Motion>: select-extend() \n\ Shift<Btn1Up>: select-end(CLIPBOARD)

This way, if I select something with the mouse while pressing shift it will go to the clipboard. I can shift-select text on the terminal and paste to Firefox using ctrl-V, for example. And I can copy something from Firefox using ctrl-C and paste it on vim using shift-insert.

Normal selection goes to the other clipboard, so I can paste it using middle button or just clicking insert.

OK- that's a decent work-around, I'll admit. But middle-click is so easy...

I agree, but this doesn't eliminate middle click. I just like this because I use a trackpad on my laptop, so middle clicking is hard(ish).

If you are using vim and it is built appropriately, the "* register reflects the contents of the primary selection and the "+ register the contents of the clipboard. See :help registers

You can also use the default register instead of "+

:set clipboard=unnamed

http://vim.wikia.com/wiki/Accessing_the_system_clipboard

Ah, yes, I see that does work. I probably tried on a version that wasn't compiled with that- found middle-click and never looked back. Thanks though for getting me to check again.