Email or SMS text reminders for Actions fire off to your client on schedule, which helps keep awareness up between sessions. It's also easy to mark an Action complete: all your clients have to do is reply "done" to the reminder.
When creating or editing an Action, choose the exact minutes, hours, days, or weeks before the Action is due to have your reminders sent. You can set as many as you'd like:
Marking Actions Complete via Reminders
The great thing about reminders for Actions is that your client can mark an Action complete simply by responding "done" to the email or text reminder: no logging in required. Any additional text will be added as comments. More on Completing Actions here.