*tangent* I adore etiquette guides. Some of my favorite memories of being a kid was reading- in my grandmother's 1925-era book- about what a butler's duties are, and how best to set a table for an "informal" luncheon for 12.

This had utterly no relevance to my life, of course! but at the time, it was pretty close to sf/f for me... and was a delightfully ordered and comprehensible world.