See time spent by activity
Set up a tag called 'Activity' and add the various activities as sub-tasks:
Now log some time using the tags and the reports screen will give you a nice breakdown of how time was spent:
See time spent by project stage
Set up a tag called 'Stage' and add your project stages as sub-tasks.
Now I can see from the reports screen how much time I spent on each stage:
Have you found any other useful ways to use tags? We'd love to hear about them: Shoot us a message and we'll add them to this article!