Skipping stretches in favor of getting more work done results in less work getting done

My most effective means of combatting repetitive strain-stress injury to date has been the stretches I learned from http://www.selfcare4rsi.com/. However, they take a long time - at least 30 minutes in the morning and 30 minutes in the evening, plus I take a break and do 5 to 10 minutes of stretching every 35 or so minutes. I'm sure I won't always have to do this much stretching, but now, while I am still healing, I do.

I forget sometimes that taking all this time to stretch is the main reason that I can work at all these days, and I try to skimp on my stretches to have more time to work. and I'm paying for it. My right arm and side and back are all locked up like cement and no amount of stretching is helping. I'm just going to have to sleep on it to get anywhere. Tonight and tomorrow, I'm stretching for 45 minutes! I promise!