As soon as I read the term "pocketbook" on this thread...I immediately thought of Judge Judy. She calls a handbag/purse/bag a "pocketbook"!
Out here in the Pacific Northwest, "pocketbook" is unheard of! If someone used the term at Nordstrom..."Say, can you tell me...where are your pocketbooks?"...the sales associate would probably direct you to Barnes and Noble!
Dontcha just love English??