*"Easy" as in "doesn't require advanced mathematics", not "easy" as in "any idiot with a pile of snow and a couple of brain cells to rub together could get one up in ten minutes" Public domain image courtesy of the NOAA via WikipediaI come from a place that elicits igloo jokes from people who aren't from there: Minnesota. "That's like the Arctic, right?" Uh, yeah. I'm going to sic my pet polar bear on you now. I've gone ice climbing, hiked in...