The impossible INBOX

Now I have surrendered, it's impossible to keep my inbox with zero emails. I have read lot of techniques, see presentation in youtube and google video but anything works. My problem is that I receive such amount of emails that I can spent all the day only processing it. If I don't do it (because I'm supposed to do also some "practical" work) then the email get in the inbox for ever... the most worrying situation is that from time to time I lose some important information in one email never or quickly read and soon forgotten.
As I said I have surrendered so I'll start organizing by emails by months instead of with any useful method. This way sure I can keep my inbox with zero messages.