Like many women, the supermodel let her husband handle their finances, at a huge cost to her when she was widowed at midlife — Former supermodel Paulina Porizkova has just come out with a memoir, No Filter: The Good, the Bad, and the Beautiful, a series of essays that range from her childhood in Sweden, to which her family had fled from Soviet-occupied Czechoslovakia, to beauty and aging, to her marriage to the late…