OS/Environment
Apple OS X 10.4 and 10.5.
Windows 3.x through Windows 2000.
Several different Linux distributions, in desktop environments.
Since 1997, I've made my living primarily as a web developer (with forays into requirements analysis and the implementation of software-as-a-service [SAAS] offerings). This is a necessarily partial list of web development platforms or technologies I've used or am currently using.
After nearly three decades of working in offices (including time spent training folks how to use office software), if I don't know it, I can usually figure it out.