As of 2014, she has eleven published books: Bitter is the New Black; Bright Lights, Big Ass; Such A Pretty Fat; Pretty in Plaid; My Fair Lazy; Jeneration X; If You Were Here, her first foray into fiction; The Tao of Martha and "Here I Go Again" her second fiction novel; "Twisted Sisters"and finally, "I Regret Nothing".She is also an occasional NPR columnist.
Lancaster was an associate vice president for a technology company prior to being laid off after 9/11. Being laid off, and her adaption thereto, became the subject matter for her blog and, later, her books.
Lancaster was raised in Indiana and now resides in Chicago, Illinois with her husband, Fletch, and their many pets. She is an alumna of Purdue University. She is known for her humor and rampant narcissism which is mentioned in her books.