Good question. You can obviously just hand out stuff door to door - however, the vast majority of those samples get thrown away. Here, you can put a shampoo sa

Good question. You can obviously just hand out stuff door to door - however, the vast majority of those samples get thrown away. Here, you can put a shampoo sample directly in their shower, or a yogurt same in their refrigerator. Advertisers will pay far more for that, allowing us to subsidize home services.