As a lifelong procrastinator this article reads like "that other Napoleon" aka Eisenhower and his "delegate" for anything neither important nor urgent. I use it when I'm one of several recipients in emails To: address.

Other responders have also talked about Google inbox which I never used but even those of use locked away in enterprise fiefdoms with Outlook can make use of pinned messages (same as starting in Google Inbox) and recently also can be reminded about emails. I use both combined with the approach of trying to clear my inbox as close to zero unread each day as possible. I do same to slack messages as well. For all "messages" I ruthlessly delete or archive anything not needing action and with no legal or revenue impact.

THats how I manage the torrent of comms. Need to improve my work on larger items to start earlier and produce in smaller chunks.

For keeping track of all my work I used Obsidian with tasks and tags and put due dates on all. Helps me see what is due for each "project".

My 2c.