Use your Blackberry as a modem
This is old, but I've got to blog this to clear the flag in Outlook.
Do you have a Blackberry? Did you know that it can function as a dialup modem for your laptop? My Blackberry is fairly old, and uses GPRS (essentially 33.6 dialup speeds) but newer models use EDGE and UMTS (whatever that is).
Anyway - go here to learn how to user your Blackberry as a USB tethered modem so you can access the Internet from your laptop.