How do I add, delete, or edit a To-Do List item?
Marking a To-Do "done"
Click the checkmark icon next to the To-Do in the Done column on the Dashboard or Calendar To-Do List views. Pat self on back. To-Dos marked as "Done" are archived into a separate view on your To-Do List, so if you wish to see all of these items, simply select "My Completed To-Dos" from the filter pull-down menu.
NOTE: If you would like a To-Do to be attached to a particular contact or communication, go to that record's detail page. Choose Create a To-Do from the Quick Add drop-down menu and complete the in-line form that loads. For Deals, choose Add in the Related To-Dos and Events box. The To-Do will automagically be attached to that record.