Over time Rachel and I have picked up a few habits and practices that greatly help reduce stress and ensure that we get the most important things (the things I really need to do) done. 

Although everyone has slightly different circumstances, I think these can be equally useful for many different walks of life.

In order to ensure that they happen, we have them scheduled into a few daily rituals. If you can schedule an evening, morning and perhaps after work ritual, it significantly decreases the mental burden required to remember various morning tasks and puts you on autopilot through the many mundane tasks so you can free your mind up for other mental tasks.