Hey Google, Hows About An Auto-Harass Button For Gmail?

Morten Just complains that Gmail doesn’t have a feature that lets you resend messages to those who haven’t responded to you within a week.

He writes:

So you’ve done all your GTD karate today. Hundreds of mails out of the way. The balls are at their court, just waiting for their follow-up. Because they do follow up right? What if they don’t, how do you catch them, then?

One of the biggest problems of getting things done is other people. And that’s not going to change.

Which features do you wish Gmail or whatever service you use would adopt?

Someone please build this: Anti-shelving filter for GMail [Morten Just, via SEO BlackHat]
(Thanks, Jenny!)