This snippet creates a smart list with all your open items and creates a tab in the custom sidebar. Alternatively, connect the smart list to a custom square or custom text link to access it.

Once activated, you'll see a new item in your sidebar called "Open Items". When clicked, it shows the following view.

This workflow snippet uses the following strategy:

This smart list shows all tasks that aren't on the Backburner and groups them by the main categories.