I’m really good at managing my inbox (for personal email at least) and rarely leave messages there for keeping. Most emails go in a receipt folder or get deleted, I aggressively unsubscribe to mailing lists and mark spam as junk, and special messages are archived for keeping.
Occasionally I’ll have a message with important information that I don’t need right now and will want to easily reference in the near future. I’ve tried flagging but I don’t entirely understand how the feature is supposed to work between iOS and the Mac.
