Without using Exposé, it is hard to tell which Mac OS X applications are hidden and which aren't. But, with a simple Terminal hack, you can have all your application icons displayed as transparent.

If you'd like to have empty space in between some of the icon sets on your Windows 7 taskbar to keep things organized and separated, this simple hack will get the job done. Lifehacker reader ...

If app icons suddenly disappear from the macOS dock someday, you can try out a few quick fixes first. These include performing a system restart, reopening the affected apps, clearing RAM and occupied ...