STOP WASTING MONEY at Costco. Employees are literally trained to keep this quiet: 1. If a big-ticket item like a $1,500 TV scans way lower than the tag price, just pay and go. Most of us will let it slide because we don't get commission for fixing pricing errors, and honestly, we don't care enough to flag it. 2. Thursday night clearence is when items get marked down before the weekend rush. Go between 8-10pm and scan endcaps in seasonal sections with the app. You'll find 50-70% off markdowns tha