I'm attending University right now and in the middle of my finals exam period. Over the last month or so I've been studying and working in one of the Libraries available (I have a Room-mate that plays loud video games.)

It's the first time that I've ever left my room or living space to work and I'm amazed at how much more effective I've been in terms of the work and studying I've gotten done.

I live pretty messily and I think the biggest difference is working without looking at so much clutter on my desk, being in a room full of others working diligently and for some reason I find working on a nice wood finish to be very productive.

Experiment around until you find something that works and stick with it.