The Dud Avocado by Elaine Dundy is a book which is young, ridiculous and a joy to read.  There's just enough tawdry to overcome the desperate silliness of the character.  She's adorable, selfish and wonderful while finding herself in Paris.
Quote from page 25 "A rowdy bunch on the whole, they were most of them so violently individualistic as to be practically interchangeable."