If you're nice and cozy by your wood stove, and feeling good about your own energy and stamina in splitting and piling all that wood for the winter, then good for you. But don't get too impressed by your own firewood prowess until you consider these Herculean efforts. My friend Sandy Smith here at Penn State sent me these photos to keep me humble.

Ever heard of the holzhaus(en)? Well, those were woodpiles that mere mortals would build. But real wood users need a real stack of wood, one to be proud of as you'll see from this slideshow.

Man, I just looked out at my woodpile. As Sarah explained so well, I'm experiencing feelings of inadequacy.

Next year I'm going to have to get serious. My chiropractor will welcome the extra business.