Essentials

Essentials app can easily become your favorite and irreplaceable shortcuts pad. Just press hotkey (default is Ctrl+Space, but you can customize it in preferences) and Essentials will appear where ever your mouse cursor is (or not, if you choose so in preferences). Access assorted folders, documents and files of any kind - Essentials can act as clipboard or "dropbox" for your e-mail messages and text clippings. Make your own simple Terminal commands/scripts (that can act as droplets too, now which app can do that).