It depends what you mean by good. I have to imagine most of your 300 emails are more substantive than the emails I get in a given week, because I am quick to delete at least half of my incoming emails immediately.

I am actually terrible at acting on emails that demand a response, however. They usually sit in my inbox until they are stale (ostensibly to "remind" me to act) and then I have to go and purge them every few months. The pity is that often, the actions were "write personalized reply to friend," and I just never take the time to draft a friendly email because email has come to represent this timesink.

I have a filing system, and a lot of emails make it there sooner or later for record keeping. I get the feeling that I tend to archive more than I need to and if I cared to take the time, that could be cleaned out, too. I guess it's a good thing storage space is cheap.

I feel pretty good about my sorting and tagging of e-mails in my personal e-mail account, but the program I use at work is clunky and burdensome - it takes five clicks to create a new folder, and I think that's part of the problem.

My work e-mails tend to fall into
1. Beat-specific information - delete or file.
2. Internal work-specific information - delete, file or reply.
3. Non-pr initiated tips for possible stories - evaluate, then reply, investigate or delegate.
4. Story pitches - reply with "no thanks" or initiate conversation.
5. Ongoing beat-related conversations - reply by e-mail or phone, often require real-world scheduling.
6. Ongoing professional society conversations - file, act or reply.
7. Requests for information (often spurred by stories I've done) - reply, be sure to inquire about interest (is the person making this inquiry a possible future source?)

A lot of the time, e-mails will fall into more than one category. For example, a story pitch will include beat-specific information that I want to file for future use.

I do not have a good filing system at work, except to mark as priority e-mails I absolutely must act on, and to mark as unread the most important of these. If I had a better e-mail sorting system, my life would be much easier.