Oh, yes ...
7. Most bows have the "wings" at both ends. The coolest, and most fashionable, bows only have the "wings at one end. You tie them just the same, except that you take the "second" end under your collar ... not back through the bow loop.
8. Don't wear an "upright" collar unless you are wearing Highland dress ... or come from the Essex Triangle.
9. Your dinner shirt should have a plain, studded front ... no frilly patterns.
Good place to get a shirt ... Turnbull and Asser on Jermyn Street.
Good place to get a bow tie ... Ede and Ravenscroft on Chancery Lane.