Target Corp. (NYSE: TGT) is cutting prices again and boosting promotions as it tries to squeeze every last available dollar out of a crucial holiday shopping season. The Minneapolis-based retailer — which has dozens of locations throughout Greater Houston as well as a new sortation center — on Thursday announced its annual clearance sale, cutting prices on clothing, shoes, beauty, toys, holiday decor and other products in stores and online. Target and other retailers typically offer post-Christmas…