I changed my name. At the time, I didn't give it much thought. In hindsight, I wish that I hadn't. DH and I now work in the same department and have many of the same (external) work contacts. Keeping my maiden name may have cut down on some of the personal chatter that invariably comes up when someone realizes that yes, in fact, we are related. But at this point, it would be too much of a PITA and cause too much of a stir to change it.