Widespread use of clinical checklists is relatively new to health care. Anesthesiology has borrowed lessons from aviation safety since the late 1970s, but checklists only reached a tipping point after the World Health Organization (WHO) Surgical Safety Checklist was introduced in 2008.^1,2 Suddenly, checklists are appearing everywhere from routine (normal) patient handoffs to critical (non-normal) events during an anesthetic.^3–9 There are a variety of types of checklists, and they serve multiple functions, from team member activation to shared situational awareness to procedural compliance, but most serve as cognitive aids to ensure that providers do not forget crucial steps during either routine, mundane tasks or dynamic, emergent events.^10,11 Having proven wildly successful in certain situations, checklists are now being inserted into various points in the clinical process without appreciating them all in combination.