Amazon offers the Tide To Go Instant Stain Remover Liquid Pen 3-Pack for $5.69. Clip the coupon and order via Subscribe & Save to drop the price to $3.94 with free shipping. That's tied with last week's mention as $2 less than you'd pay at a local retail store.

Be sure to cancel Subscribe & Save once your order ships to avoid being billed for subsequent shipments.