Start the half hour habit.
Experiment with your schedule to find out how realistically introduce this creative half hour into your day. Find out what times work best for you. To change any pattern behavior and start new habits we need we need to be dogmatic and a bit relentless with methodology. Be disciplined about writing down the days you do your creative half hour and the days you miss. Note the time of each session and then do a quick rating of your session from 1-10. This will help you figure out when you are the most open, engaged, and productive with your creative flow.
source: Let Elephants Run by David Usher