You can view all completed tasks by pod, or client, using Insights.
1. In your account, go to Insights.
2. On the right hand side, select Pods (progress report).
3. Choose your name under Team Members and a date range. Under Show, make sure only Tasks has a checkmark beside it.
4. Click Get Insights.
5. Click Filter By, and select Completed.
If you want to export this list, click Export for a .CSV or Print for a PDF.