Relax – and work at the same time? You've got to be kidding, right?
According to Steve Pavlina, “relaxifying” your work space is crucial to productivity. There's actually quite a bit that you can do to make your workspace a soothing, happy place instead of just the building you go to every day to kill eight or nine hours; plants, scented candles, photos, even a decorative water fountain (!).
Of course, you have to work within your company's policy on this sorta thing, and yeah, you probably know this stuff already, but it's worth a try and a reminder to give you more peace of mind.