The latest versions of SmileOnMyMac's PDF editing utilities PDFpen and PDFpenPro bring a handful of minor, but appreciated, tweaks. Changes include better text selection and highlighting in scanned documents through better position accuracy, improved compatibility with sheet-fed scanners, the resolution of a bug that prevented text annotations from being drawn, and the capability to select text in fonts with zero ascent and descent. The updates also bring several other unspecified bug fixes and improvements. ($49.95/$99.95 new, free updates, 45.9 MB/46.1 MB)
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.