Walmart offers the Nine Stars 2.1-Gallon Infrared Touchless Stainless Steel Trash Can, model no. DZT-8-1, for $20.40. (Amazon charges the same for Prime members.) Opt for in-store pickup to avoid the $4.97 shipping charge. That's the lowest total price we could find by $12. It features a water-resistant infrared motion sensor that detects motion within inches of the sensor range and anti-fingerprint stainless steel construction.