Easily know how you post looks like on every page of your WordPress site. With new Preview Posts Everywhere WordPress plugin you can easily preview your post drafts on home, category, archive, search pages and in many other places.
Everywhere we use Ctrl-S for saving our content. We use it while saving images on Photoshop, saving web pages, saving content on writer, spreadsheets etc etc. We are using it since long because its simple so from now you can use this keyboard combination on WordPress too.