RSI and Carpal Tunnel Syndrome

I spend a good amount of my time on the PC or knitting, and I've started to develop aches in my hands, fingers, and wrists. I did a bit of searching and came across this brilliant site with instructions for RSI exercises from a Yoga and T'ai Chi Chu'an teacher, Ellen Serber.

The most important thing to remember is to take regular breaks. I tend to forget breaks, I don't watch the time and can find I've spent several hours knitting or surfing, but I only realise when it starts to hurt. So i found this brilliant PC timer. It's a tiny free download, and it's going to be extremely handy for me to time my daughter's computer time too. It comes with a horn sound, but can easily be changed to play music or any other soundfile.