Hey! Please don't tell people about their "unsecured" networks, I, too find it very convenient to use other people's wi-fi when I travel- Shshshshshshshs...
Does anyone here know if it's possible to set up a WiFi network such that anyone who logs in is forced to start at a specific URL as their homepage for that session?
If you could do that, then you could make a custom homepage ("Welcome to JennyNet!"), open up your WiFi network, and put up a PayPal donation box & see if you get any tip activity for your trouble. If you're in an apartment, or if you live next door to a Starbucks, it might even pay for itself.