Hello! I'm still looking for my wife's first Birkin, (now narrowed down to a Thalassa, sapphire, or blue jean 35cm in some form of non-reptile skin... I'm slowly learning!) and have unsuccessfully visited a few stores in my quest. The SA's seemed earnest and helpful, but... I was just wondering if it is encouraged, accepted, tacky, or just plain illegal to tip the SA a few hundred dollars to, um, make the process a little smoother? I suppose it might set a bad precedence and lead to uncomfortable situations with the SA and other customers. Some of the very helpful PF members also suggested buying some other items over time to establish a relationship with the SA, but my travel time over this year will be extremely restricted, and I don't know if this will be a reasonable option. I would greatly appreciate some lessons in the finer aspects of Hermes/Birkin etiquette!