If you are a user who is always behind and has to continuously consult a calendar to see pending tasks, then there`s nothing better than to have an interactive calendar at the bottom of your desktop.
Apart from the normal options of all calendars it has alarms, tasks programmer to advise at any time of what you need to do or pending appointments you have, etc. It is personalizable in terms of colours, fonts and icons, and you can make backups or export the data in CSV format.