I have always had trouble with capitals when I am writing things out by hand. I know the rules very well, but as I write I slip into capitals very easily especially in the middle of words. I have heard that capitals are processed in another part of the brain, and this makes sense to me. I think that as my orientation slips and my concentration starts to hurt, I include the capitals to pin the words down to the page, this stops me from imagining them in a three dimensional way. In this way I find that I can write for longer without getting too confused. The conventions of writing all lower case for e-mail addresses and all in capitals for official forms add another layer of difficulty again. Does anyone else do this?