St. Clair Software has released Default Folder X 4.6.8, adding compatibility for the public beta release of OS X 10.10 Yosemite. The update also improves the speed of the Rename command and fixes a bug when running in 10.9 Mavericks so you can use standard contextual menus instead of those provided by Default Folder X. ($34.95 new, $10 off for TidBITS members, free update, 10.6 MB, release notes, 10.6+)
Option-click to Hide Apps Quickly
This trick has been available in the Mac OS for years, but many people still don't know it. If you have too many windows cluttering up your screen, you can hide specific ones easily as you work. When you're in any application, hold down the Option key and click on another app's window, on the Dock, or in the Finder to switch to that other app and simultaneously hide all the windows in the previously current app.