"Filter by Done" lets you quickly filter tasks by the "Done" field, so you can see only the tasks in progress, or only the completed tasks.

"Filter by Due Date" lets you filter the tasks by their due date.

This filter, together with the modifier, shows the tasks which are due on or before the date selected in the filter field, or due exactly on the selected date (you can see the tasks due on a specific date), or due on or after the selected date.

The flexibility of "Filter by Due Date" makes it possible to generate required task reports in a few mouse clicks.

After choosing the date for filtering you can open the drop list named "is less than or equal to". You are getting access to some predefined filters, such as Yesterday, Today, Tomorrow and others. You can see the full list of filters on the screenshot.

Using these filters you can easily remain only tasks that you need in this very moment.