In the Sex and the City TV series and movies it seems that the four women spend all their time dating, shopping, meeting each other, or otherwise pursuing personal time. How do they actually earn enough to live their lifestyles?
Charlotte is fortunate enough to have men who will give her money (Trey from divorce, Harry from marriage). At the start of the series, she works in a gallery.
Carrie is a writer for the New York Star and in later series writes for Vogue.
Miranda is a successful lawyer, becoming a partner in later episodes or the first movie (can't remember which).
Samantha works in PR and is very well regarded.