Lifehacker is running a feature called Save time with text substitution, which explains the use of text-substitution apps Textpander (for Mac) and ActiveWords (a Windows app). The apps work by defining fast keyboard shortcuts for text you find yourself typing frequently, like personal info in web forms, HTML tags, special characters, e-mail signatures, and so on. The site compares the productivitiy boost that comes with Textpander and ActiveWords to that of Mac launcher-plus and cult favorite Quicksilver.