I like being able to schedule things for my day, but the reality is that I don't always get to all of them. If a checklist of the items I scheduled appeared at the end of the day or beginning of the next day, I could verify I got it done or reschedule it if it didn't. Currently, once you schedule something it's gone from your To Dos forever - assumming that if you schedule it, it is done. This is not realistic.