Do you use one? I personally have no need for one. Most guys who'd stand in a trout stream in 30 degree, raining weather wouldn't, but I observed a young man today wearing a hooded sweatshirt, hood up, poke his umbrella out of the car, open it and then walk 10 yards to the door.
Why? You have a hoodie on, and it's only 30 feet. I don't get it.