Websites to find the "least expensive" services

As always if you have a favorite website - share it with us and tell us why...

Cell phone plans – http://www.rateplan.com/ or http://www.billshrink.com/

Car insurance – http://www.carinsurancerate.com/ or http://www.carinsurance.org/

Bank fees – www.mybanktracker-com/banks OR http://www.findabetterbank.com/

Airline tickets – http://www.skyscanner.net/ or http://www.efares.com/

Travelling by car – you might want to know where the speed traps are set up… this is for real.. go to http://www.speedtrap.org/

An all time favorite for just about everything we need.. http://www.allmyfaves.com/