Move window buttons to the left using GNOME on Ubuntu 13.04 Raring Ringtail

Not quite a coding tip, but might be useful anyway, since for me at least it was not quite obvious.

First, make sure you have dconf-editor, or install from repositories if needed

Then, navigate to org → gnome → shell → overrides, and set button-layout to close: or close,minimize:

... whatever it's on the left side of the colon will be on the left corner of the window title, and whatever's on the right will be on the right corner