I have hundreds. Most have to do with Architecture and design. I have files broken down into the 16 categories of Architectural specifications and then those are broken down into sub folders for the various materials of those 16 categories. On top of that are categories for Architecure firms, Interior Design firms, Contractors, design blogs, etc.
I have a bazillion or so. I like that you can alphabetize them in IE, and the folders as well. Did you know that if there's one you want to keep at the top, if you put a ! or * in front of the name, it will stay above the As? Just so ya know!
I have probably around 20. I have a ton of them for all the bills I have to pay, plus the credit cards, then I have both my email accounts, some stuff that I want but can't afford and a bunch of school bookmarks. :nerd: