More and more cities are offering Wi-Fi at no charge. If you're not lucky enough to be in one, don't cave in and pay for access at your hotel--or at McDonald's or Starbucks, which also charge for the service. Just stop in at one of the many chains below. (Libraries are also worth a try.) To find out other spots where there's free Wi-Fi, head to websites such as jiwire.com, metrofreefi.com, hotspothaven.com, wififreespot.com, and wifizone.org

Retail chains