open ccsm:
enable Opacity plugin and add
((type=Menu | PopupMenu | DropdownMenu | Tooltip | Notification | Combo | Dnd | name=sun-awt-X11-XWindowPeer)) & !(name=sun-awt-X11-XFramePeer | name=sun-awt-X11-XDialogPeer)
set to 95
http://www.ubuntu1501.com/2007/12/transparencies-and-opacity-in-compiz.html
Clean all distfiles except for installed packages (exact version), those which are less than one month old, bigger than 50MB, or fetch-restricted:
# eclean-dist -d -t1m -s50M -f
From a crontab, silently clean packages in the safest mode, and then distfiles in destructive mode but protecting files less than a week old, every sunday at 1am
0 1 * * sun eclean -C -q packages ; eclean -C -q -d -t1w distfiles
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