Not exactly relevant to the topic, but I find the term mixing too broad to grasp what I am actually doing. I like how the Groove 3 Explained video lists them.
Recording
Editing
Arranging
Mixing
It keeps me focused on what I am supposed to be doing and get it done, and not just flitting from one activity to another.
My workflow is I get a rhythm guitar track and put a drum loop to it. Then I record new guitar track with drums(John plays better to drum than to click). I then add bass, We record vocals, a quick lead, another rhythm guitar track(usually different guitar), and finally dial in the lead guitar.
This week I have been messing around with guitar and vocal tracks. The one idea that really sounded good was to convert to stereo, hard pan each one, and then clone mono track and leave that one in the middle. It was the same with the rhythm guitars. It really adds width, but without the extra cloned track in the middle, the focus seemed to wander. Now I may not leave it that way, but in experimenting with re-enforcing the vocal and spreading out the guitar, it seemed to work. I hope the resident experts will let me know if I will run into problems down the road with this technique.
Like I said, I'ma noob too, so I'm just throwing out ideas.