The other day, we used a friend's laptop to shop for new cellphones and order online. We wanted some place with AC, and we went to the local McAlister's. We discovered we could pick up the free wifi signal from Quizno's (several yards away), and we happily used that. (We didn't want to pay for access at Starbuck's, thank you very much.)
Last night we were back in that same part of town and needed to use wireless again. This time, we went to Quizno's and felt bad about just using their signal for free. So we paid about $18 for sandwiches, chips, and drinks while we surfed. Wifi was no longer free, but Quizno's attracted some business with their "free" setup. Good for them!