I shoot mostly B&W.

Unless it is a very difficult lighting situation like backlit or really confusing mixed lighting condition, I don't feel the need to bracket. B&W film is flexible enough to deal with this.

If I think a multiple good composition exists, then I take multiple shots from varying angles but I don't call that bracketing. I'll shoot shots until I'm satisfied I've covered enough. I'm not good enough to take one shot and let that be the best shot I can take - composition wise, that is. Also... I had several occasions where a frame was damaged during handling and I have to use another frame. Having similar or the same image on a roll helps as an insurance.