I am not too bright

We had a bout of freezing rain tonite. I was caught out driving in it and fortunately made it home and into my garage. We had one of our cars parked on the street soooo I made the brilliant idea that I needed to move it to the driveway. I was trying to make sure the snow plow would be able to spread salt. 
Well, as soon as I stepped on my driveway my feet went flying out from under me and I fell hard on my back. I don't think any serious damage was done but I am going to be one sore fella tomorrow. I have to remember I am not superman.  Ouch.
Tom