I’m fairly good at keeping my email organized. I have the following labels:
Projects: For correspondence about personal projects or projects I am involved in.
Newsletters: For regular newsletters. Some of these I also receive via RSS (see also: How I organize my RSS feeds). These are emails that I can read any time.
- Bandcamp (for new releases etc)
- Cooperpress (Ruby Weekly etc)
- GOG & Steam
Discussions: For discussion mailing lists. There aren’t too many of these, though.
Work: For correspondence about employment and job search.
- Job search
Miscellaneous: For all other categorisation. This is mostly the “I need separate labels but they don’t fit elsewhere” category.
I’ve got rules set up that move everything out of the inbox and into the correct label automatically, skipping the inbox.
Newsletters are set to be auto-deleted after 60 days.
I have a stored search called “Ephemeral” that finds everything that can be deleted. This overlaps largely with newsletters.