Release Accelerator, Brake first, Clutch later

In a car with manual transmission, the right foot should be used for accelerator and brake, while the left foot should be used for clutch only. 

Moreover, it's always removal of right feet from accelerator for natural engine braking and thereafter brake. Left feet for clutch should be put to use only when it becomes absolutely essential. 
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* Fine Driving Gyanology 
* Art  And Science Of Driving