Lukas Mathis studied Computer Science/Software Engineering and Ergonomics/Usability at ETH Zürich and works as a software engineer and user interface designer for a Swiss software company creating workflow management software. His first computer was a Performa 450, his first programming language was HyperTalk, his first electric guitar was a cheap Peavey, his first video game was a VCS 2600 and his current snowboard is from Lib Tech. He lives in a small cottage in a remote part of the Swiss Alps. You can follow him on Twitter.
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.