Is there any way to auto-close Safari's download window upon download completion?
I use the Glims plugin for this, which has a host of other useful features, too.
I use SafariStand from Hetima.com (which also has many other useful features).
I use ⌥⌘L which doesn't have any other feature and doesn't do it automatically (but doesn't use any extra RAM) ;-)
killDownloadsWindow:
killDownloadsWindow is a lightweight utility that runs in the background and closes Safari's annoying download window when a download finishes. Simple, but effective