I'm confused. I think Gmail is by far the BEST way to keep an empty inbox. I have 120,000 emails in my Gmail account, and zero in my inbox right now.
If you want to search within a specific label later, just use the "label:" term. For example, if I wanted to find a file with the word "invoice" in my "awesome" folder, I could search for:
It's great! Just archive away, or use the time-saving "Send & Archive" labs feature to shave off a few more seconds.
Or am I missing something here?