Most of us get them once in a while but I hate it when I'm at fault. After takeoff I returned to the airport due to a fast moving thunderstorm. I was landing long on a runway 10,000 ft long and 150 ft wide when I'm used to 3300 feet long and 50 feet wide. Put that different sight picture along with no white markings mid runway for height reference, a fully loaded airplane and a sudden change of winds to a tailwind. I made a mistake that ended in a tail strike Bummer of a day. I don't think anything other than the tail cone was damaged but I'm going to do some dye penetrant inspection to make sure. Lesson learned, land near the white stripes on an unfamiliar runway. That was my biggest mistake.