Free Customer Wi-Fi: Doing It Better

I went down to J&R and purchased a wireless Logitech keyboard. While enjoying the free coffee they provided with purchase, I signed into their free WiFi. While signing up I noticed an extra field to fill in: my email. Now I know who is in my store. Also a negative uncheck box to receive more information. All your clients should use this as an inexpensive and quick way to capture customer and prospect information from brick & mortar locations.