As noted in this earlier post on the Houston Livestock Show and Rodeo, today is Go Texan Day in Houston in which many Houstonians don their best Western wear clothing for the day. As the trailriders descend upon Memorial Park later today, the Chronicle reports that one of the trailrider groups will be led by the first woman trailride boss in history. The Rodeo kicks off tomorrow with the annual Rodeo Parade in downtown Houston beginning at 10 a.m.