I would say take your wife. She can shop at the Cartier store across the street.
Some of the dealers could be "shady" I guess, but they all had "authorized dealer" signs and such. Not a whisper of reps, and all prices quoted were believably close to retail. Lots of pre-owned stuff for sale as well. I'm not sure about paperwork, but you could at least research the serials. I was in one particular building which was very wholesale-ish and no-frills, but all around that are traditional high-end dealers with regular showrooms. I knew I was in the right place when I get into the elevator of this run-down building and see a guy with an IWC and two with Pams step in. To my untrained eye, they could have been reps, but I think now I know what "real" crocodile leather looks like. My jaw dropped. That guy with the rubbermaid bin, he shows me a bunch of $5-10k models, then he pulls up his sleeve and reveals a beautiful yg Pam with carbon fiber dial (140 I think).
About the glasses, can I post direct links here? I'll try an anonymizer.
They usually have "fake" (and funnily translated) logos and emblems, but all the major styles are copied. The quality is better than you'd expect, and the prescriptions have been as good as from my local optician. AR coatings, progressive bifocals, etc.; you can get it all from folks in china for, I don't know, the price of a couple of trips to starbucks. Between my wife and I, we have about 30 pairs. (ouch) Average price: about $26 USD (that's with plain lenses, and neither of us wear bifocals). I think maybe 3 have broken, and 2-3 looked good in pictures but terrible on our faces. You have to do your homework, measure your current frames, and do a lot of imagining about how they will look on your face, etc. because you're going to have a very hard time returning them. (Heh, kind of like rep watches I guess)
Here's one I do a lot of business with. Terribly disorganized, but there are plenty of gems if you're willing to dig.
Goggles4U
Here's another one with a little better organization. Glasses have been similar in quality.
ZenniOptical
Oh yeah, did I mention that Hublot shop had three Richard Mille models on display?!? I wished they would let me take photos. Never seen that in the US before, but maybe I don't get around much.