Gwyneth Paltrow tried to stay warm earlier today on her way out of Madonna's apartment in NYC. The girls were up early for another one of their workouts together with trainer Tracy Anderson, with whom Gwyneth is said to be opening up a chain of gyms. Exercising isn't the only thing going down at Madonna's house, though. At her daughter Lourdes's request, Madonna and Guy got together with all their kids on Tuesday night as they try to remain on friendly terms despite their divorce. Madonna might not have taken Gwyneth's advice on fighting for her marriage, but the next best thing will be if they can all remain friends.