Sorry, this sample is no longer available. Get a free sample of Gain laundry detergent from Sam’s Club. I can’t tell if it’s the actual detergent or the “scent card sample” that Walmart sent out. Let’s hope for the real detergent! The free samples from Sam’s Club and Costco are great ones to get, and usually they do not require that you be a member to request them (just leave the membership number blank). Sam’s Club doesn’t have any other free samples available to request right now, but they have offered a wide variety in the past. It usually takes up to 4 weeks to receive your free sample.