The Saddle bag was undoubtedly the bag of the 1970s. Nothing looked better than it when teamed with flared jeans and a cheesecloth blouse, but it also totally fitted the bill with the more slinky printed wrap dresses a la Diane Von Furstenberg. Worn cross body, or swinging from the shoulder, this grown up version of a satchel had plenty of room for all those essentials, and yet still managed to be compact and elegant. In recent times, the saddle bag has been revitalised by the likes of Zatchels and Ralph Lauren, and has gained a new army of celebrity fans. Taylor Swift seems to have a whole variety of…