Reblitz is a great book, but not overly useful for tuning. Hopefully someone will have a better suggestion. I'm in the process of learning to tune our project/family piano mostly for the enjoyment of it. My basic strategy so far has been to:

1) read all the threads I can here for all the great info shared

2) use tunelab (after reading all the documentation thoroughly) on a laptop with a Korg contact mic to measure inharmonicity and calculate the temperment and stretch

3) tune 1 string from each note using tunelab, focusing on developing control of the lever necessary to get as close to in tune as possible and keep it there as well as how to feel the pin/string responding.

4) tune unison strings one at a time by ear (for each note as I go up), focusing on above lever control but also developing ability to hear the beating of the fundamental and higher partials to get the unison sounding as clean as possible. I will also sometimes pluck the individual strings and glance at tunelab if I get lost in trying to bring the unison in or if I suspect the center string has shifted.

Not sure that's an ideal approach, comments/suggestions welcome. I'd eventually love to learn how to tune by ear more completely, but I'm not sure I'll ever get to do it often enough to get good at it. In the mean time I'll be quite pleased if I can keep our home piano sounding decent and working reasonably.

Rob