Be a maker, fifteen minutes at a time:

http://www.laurathomson.com/2012/02/the-fifteen-minute-makers-schedule/

Laughing...it takes me 15 minutes of nesting, re-acquainting, and prioritizing just to get back into my coding flow when I want to start or after being interrupted.

I used to be like that too. It's all about retraining your brain to keep the code in your mental cache, and have your priorities in order. It's taken me a *really* long time to get a handle on this as a skill, and I won't say it's easy.