QuickSave is an EE2 extension that replicates the EE1.6 entry quick save feature. When enabled, this extension will bypass the standard EE entry preview page altogether, opting instead to return the user to the entry that they were editing. You can also optionally add 'Save and Close' and 'Save and Preview' submit buttons to the publish page.
As well as modifying the behaviour of the standard submit button you can use this extension to add a ‘Save and Close’ button, which returns you to the Edit Entries listing, and a ‘Save and Preview’ button, which takes you to the standard entry preview page.

$hook['post_controller_constructor'][] = array(
'class' => 'Quicksave_ext',
'function' => 'cp_tweaks',
'filename' => 'ext.quicksave.php',
'filepath' => 'third_party/quicksave'
);
Note: Most of the control panel hooks from EE 1.6 are currently unavailable in EE 2. The above code snippet takes advantage of a CodeIgniter hook as a workaround. Hopefully future additions to EE 2 will render this unnecessary, but in the meantime, be aware that if you overwrite the modified hooks.php file then the extra buttons will be lost and the extension will revert to its basic behaviour.
Currently all support is being handled via email, following the closure of the official EE third party addon forums. You may still find that the QuickSave thread on the archived forums is of use.
This addon is released under the Creative Commons Attribution-No Derivative Works license.