We should probably be told to ‘embrace the future’ of Lion’s new file versioning system; automatic saving, duplicates and versions. However, I just can’t seem to get my head around the lack of a ‘Save As…’ option in apps like TextEdit and Preview today.
Quicksilver - gimme a hand, will you?
If you’re tired of having to:
just download this script** and place it into the folder located at ~/Library/Scripts.
With the script installed, head over to Quicksilver’s Triggers preference pane, and create a new trigger for

"Save As..." ⇥ "Run"
(make sure you have the ‘Run’ action (the one with the AppleScript icon) enabled in the Preferences > Actions pane) - see image below

Be sure to set up the trigger to use your familiar ⌘⇧S shortcut, and enable it only in applications that use Lion’s new versioning system: TextEdit, Preview, etc.
One less step to ‘Save As…’. Easy with Quicksilver.
** Be sure to check ‘Enable access for assistive devices’ in the Universal Access preference pane in System Preferences.
Also, if you use OS X in any other language other than English, you will need to open up the script file and change the words ‘Duplicate’ and ‘File’ to your local language in the following line:
menu_click({theProcess, "File", "Duplicate"})