Walmart offers the Bosch Icon OE Wiper Blade in 20" or 21" for $10.70. (Amazon has them for the same price.) Opt for in-store pickup to avoid the $5.99 shipping fee. That's tied with our expired mention from five days ago and the lowest price we could find today by $13. Designed to resist snow and ice buildup, it features a double-locking connector.

Update: The price has increased to $12.58.