I handle email at an even more basic level. I don’t bother with an archive folder. I just read my universal inbox in Apple Mail, which collates my seven different accounts into one list. I read the new unread messages and respond to as necessary.
I don’t bother “moving’ messages into another location, the dealt-with mail just sits in my inbox marked read. In essence, I treat it like a social networking stream. I’m not aiming for inbox zero, just unread zero. I really don’t see the need to manage folders of email in an age of ‘unlimited’ storage.