Be more productive, save your time, use gestures! This was a Google Mail app (in labs). Unfortunately removed some days ago. So I remade it for us. Any advice and comments are welcome!
Need more help? Click! http://mousegestures.blog.hu/
p.s. If it's not working at first, don't give up! Try clearing your cache (Use CTRL+SHIFT+R hotkeys!) and restarting Chrome. That should do the trick.
Usage: Press right mouse button then:
drag up: go to inbox*
drag left: newer mail**
drag right: older mail**
||Require Chrome Browser