To-Do Reminders Independent of Time, Place, or Contact
I think the "remind me" section of Cortana's notebook should have a to-do list that doesn't require a time, date, or contact and could take to-dos from the calendar app.
I keep setting reminders expecting this to be there because it seems (to me, at least) like an obvious feature that Cortana should have.
For example, if someone is in college and they want to set a reminder for work to be done later, there might not be a specific time, place (dorm or library, for example), or person (study group, alone) that the reminder could be associated with.
Sports reminders include College Teams
The Voice-to-Onenote should be a Voice-to-Text should be a possibility for making lists for shopping an manage to do lists in OneNote