Calendar
Review your date-specific commitments and reminders here.
Next Actions
Review the list of all the actions you could possibly do in your current context.
Projects
Review a list of all your projects and open loops, and decide about the next step.
Waiting For
Review a list of the tasks that you have delegated to someone else.
Someday/Maybe
Review the list of the stuff that you may want to do something about.
References
Here you have a list of reference materials that you can checkout whenever you want.
Trash
Items that are in the trash would be deleted permanently after 24 hours.