Sweater weather is here and while outdoor dining is still having a record moment during the most challenging of years, Philadelphia region restaurants and attractions are getting creative to survive the cold weather. Starting this weekend, private heated individual greenhouses are taking over a Center City street outside Harper's Garden. The Greenhouses at Harper's Garden by FCM Hospitality will debut tonight with private seating for four to nine people. Over in Northern Liberties, plastic igloos that seat two, four, six and up to nine are popping up poolside at the former Vesper Dayclub that has pivoted to a year-round high end steak-house by Glu Hospitality. Over at Charlie was a sinner and Bar Bombón customers are being kept warm inside and out with hot drinks out of thermos bottles, and free custom blankets to put on their lap while they enjoy sweater weather - and that they get to take home. In Bucks County, Pennsylvania, a few minutes from Philadelphia, Parx Casino has reopened their "shape-shifting" beer garden under a new name and layout.