You have products that consumers research thoroughly online, but prefer to purchase in a B&M environment where they can touch it before buying. In essence, then, affiliates help these consumers make a purchasing decision, and then lose the referral.
What would be the best way to keep track of leads in the "Online to Offline" model.

- Use Printable Coupons and bring it to B&M
- Use Mobile Apps
- Write down code and bring it to B&M
- ... ???


Any ideas?