Car shuts down while driving

i was recently driving my car and noticed my windshield wipers were slowing down. It was the first thing I noticed, but then all of a sudden, I lost all power and my car shut off and I drifted to the side of the road. I tried to start it right back up but nothing. I did notice a light came on my dash. It looks like an anti-theft light. I know it's something that doesn't come up on my dash when I start it. At this point, I can't even put my four ways on because I have no power whatsoever. I walked home and got my husband, and he came and jumped my car. The car started right up with the jumper cables. I immediately drove my car home the short distance, but it was acting like it wanted to stall on me again. Also, when this happens, and it shuts off, I have no power steering. Once I get the car home it shuts off again. I let the car sit overnight and started the car to take to work. I drove fine with no problems to work, Six miles. After work, driving home, the car does the same exact thing. Please Help me determine what's wrong with my car.