Yep. I use hand signals even coming out of my driveway.

I actually had a neighbor kid (a 8 year old boy who lives right next door) ask what I always pointed to when I was "riding out the driveway". I told him was signaling which direction I was going to go. He replied, "Why, you always go the same way." I chuckled and told him it was for any drivers that might be coming along the street who didn't know which way I was headed. He said, "Well, if there's a car coming shouldn't you just wait?" Kid's parents taught him well.