TimBourne
Mr
From my looking/reading over your writingIf I understand you correctly:
I let all email come in to my primary inbox - as I want to have as few inboxes to process as possible.
A Gmail trick is to add "+" with an extension (e.g. if your email is hello@gmail.com, you could call it hello+newsletter@gmail.com), and it would still work. This way you can easily set up filters to route email to different folders as you like.
(A secondary benefit with this method, is that is you set up unique extensions for all services you subscribe to, you can immediately see who leaked your email address if you receive spam).
The amount of email you receive will be constant, regardless of how many email adresses you have to juggle. If you don't want an email to grab your attention, you should consider unsubscribing instead of routing it to another email address, in my opinion...
I think my preference could be : not using type method you suggest here "because of what I previously written - you understand? STN R