Walmart offers the Eclipse Thermapanel Room Darkening Curtain Panel in several colors (Black pictured) for $5. Opt for in-store pickup to avoid the $5.99 shipping charge. That's tied with last week's mention and the lowest price we could find by at least $9. It's available in 54", 63", or 84".
These are simple solutions for life's irritations -- from water stains and rusted pans to stuck-on chewing gum and balky zippers.