Ergonis Software has released PopChar X 6.5 with a new custom insertion technique, which should make it faster to insert characters in applications that don’t reliably support direct event-based insertion of characters. The update also provides a workaround for a problem that caused the search field to be cleared while entering search terms on OS X 10.9 Mavericks, squashes a bug on non-English systems that prevented PopChar from remembering the previously selected layout, and improves the speed of clipboard-based insertions for many applications. (€29.99 new with a 25 percent discount for TidBITS members, free update, 3.7 MB, release notes)
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.