I'm also an inbox-zero practitioner and am fully satisfied with my current email workflow with one caveat -- for "waiting on" or "not relevant now" emails, I ne

I'm also an inbox-zero practitioner and am fully satisfied with my current email workflow with one caveat -- for "waiting on" or "not relevant now" emails, I need a way to bring them back to my inbox at some estimated time in the future to be revisited. I found Boomerang (http://www.boomeranggmail.com/ http://www.boomeranggmail.com/) a year ago, and it's been amazing for keeping inbox-zero (and my sanity). I average about 300 emails a day and most of them aren't immediately relevant. I then label them with their context(s) and boomerang them when I think they'll be actionable. It's an amazing workflow, and I honestly think Google could just offer some type of "resend me this email later" (maybe even with a small note to myself) and would solve 90% of people's workflow problems.