Another Kenyan study found that giving girls a new $6 school uniform every 18 months significantly reduced dropout rates and pregnancy rates. Likewise, there's growing evidence that a cheap way to help keep high-school girls in school is to help them manage menstruation. For fear of embarrassing leaks and stains, girls sometimes stay home during their periods, and the absenteeism puts them behind and eventually leads them to drop out. Aid workers are experimenting with giving African teenage girls sanitary pads, along with access to a toilet where they can change them. The Campaign for Female Education, an organization devoted to getting more girls into school in Africa, helps girls with their periods, and a new group, Sustainable Health Enterprises, is trying to do the same.