Add, display and delete activities to do
This is the command-line tool I use for managing my to-do items.
I type acts new 2014-01-01 12:00 Wash the car and this activity
with its timestamp is added to the datafile. When I type acts get
(or, as I prefer, watch acts get) I will see a list of all
activities that have timestamps that are in the past. When I do
an activity I type acts done id with the id of the particular
activity and it no longer shows in the list.