In keeping with a long-held belief that you can learn something from anyone if you pay close-enough attention, I submit the following…
Has anyone ever checked their site in a text-only browser? I know, everyone knows about the Lynx browser, but did you know that there is a web-based version of Lynx?
Or that there is an installer for Windows?
Or how about a version for Mac-ites too?
Finally, the book’s chapter on Accessibility is certainly worth reading (including the nifty CSS switcher function) starting on page 81.