How Many My Docs Do Have?

I'm new to WIN XP, when I got my new computer a few months ago, it wouldn't let me go on until I put in a user name. It gave options for setting up separate names for different users. I'm the only one who uses this, and would have bene okay with just this. But, I didn't know how to NOT do it, so put in my name (Carrie) as a user.Since then, I've noticed there seems to be several "My Documents" folders. One for All Users (I can understand this) with samples in it. But, one is just "My Documents" and one is /Carrie/My Documents. Going back and forth between them they seem to be the same files. When I click on the shortcut on the desktop it goes to "My Documents" but when I scroll down with this open, I find Carrie/My Documnets. They both seem to be alike.

when I look on C drive, it only has Document Setup (and Administrator, and all users) When I click to open this it has Carrie/Documents. It doesn't show separate folders one "My Documents" and one "Carrie/My Documents".My question (and I once read there "there are no stupid questions" is this all the same? Not TWO separate file folders, one a plain MY DOCS and one a Carrie/My Docs? (thus taking up double space on the hard drive) Maybe it's just two names, leading to the same (one) folder? It's not saving everything TWICE taking up double the space? When I save something to MY DOCS, it says only that, without my name in it. But, if I look for something in SEARCH, when it finds it, it says it's in Carrie/My Documents.Maybe there's a way to get it set for just one user? Like my old WIN 98 just had "My Documnets" (simple) (I think this could be set up for users to log in). My WIN XP isn't set up for anyone to log in, but seems to automatically separate into more users.