From in front of bike, I just grab the bottom of the front wheel by the spokes, and pull toward me.
The wheel rotates about a quarter rotation. I wash that section, then pull again. Very easy. Never skinned my hand, or broken any nails. I suppose you could put a wooden block under the header, and shim it enough to get the front wheel far enough off the ground to free wheel. But I never wanted to go to that much trouble...didn't seem necessary.