You know, this is one of the noticeable things about this thread and workspaces in general - some people really do go all out to personalise their offices and others do nothing at all.
I'm one of the latter - I don't customise my office at work at all. Partly because I'm only there the equivalent of a few days a week and elsewhere for the rest of the time, but more because, well, it's just an office and I don't consider it (or work) any sort of extension of myself.
As long as I have all the essential bits of office furniture I need (desk, computer, a couple of easy chairs, a swivel chair and a regular chair, and the necessaries like pens, paper, a large window or two to let in some natural light, etc, etc), I really couldn't care less what the interior my office looks like.
I think if I made my office more personalised, I'd actually find it harder to focus (making it harder to get out of the office as quickly as possible by finishing whatever I need to do that day quickly). In fact, whenever I move into a new office, I tend to clear out as much random junk as I possibly can to minimise clutter.
But lots of others, both IRL and in this thread, really do try to make their offices feel "homely". It's interesting.