Very accurate and "by the book" advise there above!
In practise, I have been doing this for the last two years, (by eye)
My road tyres wear evenly, steering doesn't pull, and they have lasted over two years now, and they still have a little bit of life left in them
And I don't drive easy!!
I mark the camber bolts with a scribe before I touch them, wind them in as far as possible for on track and back to the mark for road use!
It's hard to do first time, because they will have never been touched before, but after that it's just two bolts before you go on track!
I can't recommend it enough, it makes a huge difference!
Dan