I tend to have a mouth like a sailor, even for a woman, but I can filter my language with ease, especially in the workplace. I use curses if I happen to smash my finger or drop a heavy box on my foot. I use them for emphasis or when angry to get my point across. Of course, as with any "dirty" word, there is an appropriate time and place to use them. Smashing your finger in church, no matter how bad it hurts, is not an appropriate place to mutter "Damn it all to hell" or "Motherf****r".
I don't mind them, but you do have to keep a professional attitude at work. This means filtering what comes out of your trap.