You know her from “Proof” and remember her from “The L Word” and “Flashdance,” but today actress Jennifer Beals is an activist, working with the Campaign for Healthier Solutions to get toxic chemicals like PVC and other phthalates out of dollar stores. According to her video, discount retailers–better known as “dollar stores”–are operated by four major chains: Dollar General, Dollar Tree, Family Dollar and 99 Cents Only. Together, they operate over 21,500 U.S. stores, making the dollar store network larger than Walmart. And their total annual sales are more than $36 billion! Yet unlike Walmart, Costco and Target, which are working towards disclosing and eliminating toxic chemicals, a new testing of dollar stores found serious problems.…