This month (starting on May 24, 2012 and ending on June 24, 2012) I will run every day except for Sundays. If there are extenuating circumstances, I will replace my daily run with a killer indoor workout.
Because I'm not a "real" perfectionist, that's it. No specific distance, speed, time of day. There's just very little chance that I could PERFECTLY achieve this goal if I add any more constraints.