The writers always wanted Charlotte to wear a Burberry blindfold in the department store, but no such blindfold exists. When they went to Burberry to commission a blindfold, they asked, "Do you make blindfolds?" Burberry replied, "We do now."
The card Aleksandr Petrovsky leaves for Carrie on the pillow was written by Mikhail Baryshnikov, including the little face. Props tried to do it better, but the director liked Mikhail's the best.
This episode, according to Michael Patrick King, marked the first time the series showed the transition from fall to winter in New York. Therefore, the design of the clothes and shoes are changed to reflect the seasons, with more velvet, wool, color, and boots as opposed to heels.
Michael Patrick King wanted Smith in the "fuck yoga" t-shirt for two reasons: One, he thought it accentuated Smith's youth in contrast with what Samantha wanted, and two, he was interested in finding out what would happen to the shirt in syndication.
In Aleksandr's apartment, a lot of the artwork actually belongs to Mikhail Baryshnikov, who insisted everything be authentic.