Better view tooltips
We recently had some usability testing done on Nautilus, and one of the things that came up was that testers had difficulty finding out how to change between list and grid view.
One thing that would help here would be to change the tooltip on the button to be more informative. Currently it says "Toggle view", which isn't clear - what does toggling actually do? My suggestion would be to have the tooltip say "Grid view" and "List view".
While we're at it, we might want to add a tooltip to the view menu (the button that's connected to the view toggle). "View options"?