Kristy Stumpf, who works from her home in Broad Run, Va., part of the week, greets her daughters Lauren, 9 (left), and Lacey, 6 (right), as they hop off the school bus. Stumpf's employer, List Innovative Solutions, lets employees largely set their own hours. Rod Lamkey Jr. for NPR hide caption

toggle caption Rod Lamkey Jr. for NPR