Many examples of prospective memory involve intending to do something at a particular time, such as going to a doctor’s appointment, or on a particular occasion, such as congratulating a friend the next time you see her. However, much of what we intend to do in our everyday lives, whether at home or at work, involves habitual tasks repeated over time. And when it comes to these kinds of habitual tasks, our intentions may not be explicit. We usually don’t, for example, form an explicit intention to insert the key in the ignition every time we drive a car—the intention is implicit in our habitual routine of driving.