I'm self-employed and I work every day at home for my company, Pixelnest Studio.
A common good practice recommended by almost any home-worker is to take a quick (3 minutes) walking break every 45 minutes or so.
- It makes you move your body. Especially your legs and your back.
- It gets you out of your computer.
- It rests your eyes. Try to fix an object at 15m and blink your eyes a few times. It's a good way to not only use your close-sight during work.
It's a simple habit, but it's hard to get used to it. For the last weeks, I forced myself to walk for 3 minutes every 1 hour of work.
And… it's great. I'm really feeling much more concentrated and ready.
Because I will forget to stand up as soon as I'm working, I've made a little "app" for OSX. In fact, it's just a simple automator app that will trigger a notification for three minutes. Follow the gist above to know how to use it. It's dead simple, but it works.
NB: this advice is especially true for self-employed people (because you can't take a break with your coworkers), but anybody working at a desk for several hours should do it. It costs nothing, and your body will love it.