Plans change. Life changes. Sometimes your routine is disrupted. Sometimes you’re the one disrupting it, for good reason.
The fact that plans will almost never go according to themselves is no reason not to make them.
Use the default. Have a standard deviation, something to measure. A mean to regress to. Deviations aren’t chaos, they’re information. And they can be rewarding. But the plan is still the plan.
The Opportunity Machine 