Cameron Kaiser is a recovering database administrator and programmer who unwisely got an MD instead and now works as a county health physician in Southern California. He drives old United States highways, maintains old Commodore and Apple computers, and relentlessly implements old information technologies on his "$50 Wal-Mart server rack" in his rapidly disappearing spare time. He has used Macs since 1987 except for a brief stint we shall not talk about.
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.