It's one of my big fears too. I've had friends who had to go through physical therapy due to RSI issues from programming. Some simple precautions can help. Fi

It's one of my big fears too. I've had friends who had to go through physical therapy due to RSI issues from programming. Some simple precautions can help. First, take breaks. :) Stand up, stretch, don't work "tense". When I get in the zone I will just hunch over for hours. That's bad. Other than that, I found that I just have to use an external keyboard and mouse and then I'm basically fine. Typing for a long period of time on a laptop keyboard causes me problems. The other thing that helps is sitting at a proper desk. If I try to work from the couch, I will feel it the next day (but mostly back issues). Move to a proper desk for doing real work...