I've always been a terrible hoarder, so over time "things" really pile up. And in a creative environment, this is terrible.

What I've found recently is that getting rid of clutter, not only on your work surface (i.e. a desk), but also in the surrounding area - especially in your line of sight - can really boost creativity.

I've even started looking into the whole minimalism movement, and really paring back. But I think what suits me is organisation - putting the things which create clutter into some type of [hidden if possible] storage device.

I certainly find I'm more creative, less distracted and am able to focus a lot more. And it's also more inspiring to sit down/stand-up at a clean, clutter-free work area.