I had never heard of "Neighbor to Neighbor" before. While talking to my aunt on the phone, she discovered that I also got my hair cut at "Great Clips" She told me that a local flyer she gets in the mail N2N had a coupon for a discount on haircuts. I found out that there is an online version of N2N. I went online and printed a coupon and took it in to "Great Clips" for a haircut. I now get N2N in the mail.
I really get tired of having to move stuff from the mailbox to the trash can.
I would say the most likely thing that happened was when I used the coupon, "Great Clips" put me on N2N's mailing list. I had been using "Great Clips" for at least 3 years. I assume cashing the coupon somehow enables "Great Clips" to sell/share my info with N2N (and who knows who else).
The first time I went into the store, they asked for my name and address "for the computer" and when I go in they ask for my phone number. I never really objected before but now that I have made the connection, I may not furnish any more stores with my personal information. It really isn't personal, is it?