Smartphones on the Cheap

Being a cheapskate and an iPhone user is tricky, but I will mention one trick I'm fond of. As free wifi becomes ubiquitous, the best option to ensure you're using its signal rather than the expensive 3G network is to turn your phone to Airplane mode (thus turning off both 3G and wifi), and then turning on wifi. Now you can safely use data to your heart's content with no risk of bankruptcy.