There is a story (also recounted in The Pragmatic Programmer) which goes like this ..
"But they say that if you take a frog and drop it into boiling water, it will jump straight back out again. However, if you place the frog in a pan of cold water, then gradually heat it, the frog won't notice the slow increase in temperature and will stay put until cooked."
It's not true. Many frogs the world over croaked at the news.
And if you're feeling upto it, TweakGuide. Their Firefox tweaks are pretty basic, but WinXP tweaks are a nice and basic (if lengthy) introduction. Saves having to buy a book on it, I guess.