History
When you save to any destination, powersave saves a reference to local memory. You can go to history tab to quickly return to websites you saved and edit the associated records.
The history is not sent to any server and can be cleared anytime.
History is turned on by default but can be turned off in the settings.

Highlight saved links
If the history is turned on, there's an additional option in the settings which you can enable: highlighting saved links.
Then, links present on the current page are compared to those in the history and if there's a match, they're highlighted.
This can help you quickly track which pages you've already processed in your workflow.