I just checked my Documents folder and since the last time I 'tidied' it a few weeks ago, there is just one .fusehidden file on there. I've downloaded a few news articles via wi-fi since, so just one file isn't too bad.
I'm not worried about them taking up space, they just look messy! And since they don't make any difference to my reading when I delete them, there's no reason to keep them. Nice to know what it is I'm deleting though
