One of the easiest way is to rent a car. It’s not the cheapest way but the fastest and most comfortable one. Especially when you are going to places where you need a car to get around (eg. Cameron Highlands). I can highly recommend the Paradies Car Rental Company located in KL.  They offer the best prices and a very good service. They even deliver the car to the Millennium Square if you ask them for. They are always on time and I had never any problems with them.

www.carrentalkualalumpur.net or you can call 0126552677