SecureMac has released MacScan 2.9, which updates its malware blocking utility for full compatibility with Mac OS X 10.7 Lion. The latest release of MacScan, which includes the most recent malware definition signatures, can now also quit all running browsers when a scheduled scan is executed, and automatically checks for new updates by default when it is first run. ($29.99 new, free update, 5.6 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.