Jamawkinaw Enterprises has released version 1.0.10 of its Downcast podcatcher app with new options for sorting local episodes by time remaining and file size. It also adds a 1.25x playback speed option and an episode count to the Local and Available episode lists. The release also fixes a bug that prevented episode duration from displaying, an issue that prevented sharing via email, a problem that caused authentication failures for password-protected podcasts (which may require you to re-enter your credentials), and a couple of bugs associated with playback speed settings. As of this writing, the Mac App Store had not updated Downcast to version 1.0.10. ($9.99 new from the Mac App Store, free update, 6.4 MB, release notes)
Open a Finder Window with the App Switcher
If you don't have any Finder windows open and want to switch to the Finder and open a window in one fell swoop, bring up the app switcher with Command-Tab and tab over to the Finder icon. While still holding down Command, press the Option key, and then release the Command key. You're switched to the Finder, with a new default window open for you.