Thank you, geeks of Reddit! Here are a couple of 'clip all' bookmarklets I've collected and extended for use on Kroger.com. Similar sites may have buttons that work the same way.
Steps:
Save a bookmarklet in your favorites bar with the below scriptlet as the URL
Navigate to the digital coupons page, set desired filters and scroll to the bottom of the page to load all results.
Use the appropriate bookmarklet to manage items (200 max item limit). Enjoy!