My wife and I just decided that we would rather live without heat than air conditioning. We decided this after living for four days without it, during the hottest week of the year in Raleigh. A mixture of bad luck and some repairman incompetence made for a very long weekend. I remember when I first started at NC State, I jokingly asked one of the older staff why everyone in N.C. walked so slow. She replied—quite wisely—that you can separate North Carolinians into two camps: those who lived here before air conditioning and those who moved here after it became …