I will share what I've been doing. Just like everyone else I sand up to 220. I've used TruOil on guitar necks, but have not bought anymore recently. I like it and will eventually pick more up. What I do have on hand is spar urathane-gloss no less. I don't like a real glossy finish usually, but gloss is what I build with and add one final coat of satin. That looks pretty sharp and makes a clear satin finish.
But I've been trying this, building with the gloss spar, and the final coat I rub in finishing wax using 0000 steel wool as the applicator for the wax and I have really come to like that so far. I know spar is not very primitive, however it's what I have and when I'm out of that I may try some other things if anyone has any good recommendations that'd be sweet.
Also I've notice certain brands of steel wool are no bueno, I get tired of tiny pieces of steel falling out. If someone knows a good brand of steel wool from experience, I'd be much obliged.
Johny