When you experience the smell, are you pushing the car hard?

Other symtoms that may show signs that it may be th clutch are:
If you see smoke coming from the front of your car then it could be the clutch.
Feels like you are shifting into a wall, moving or stopped.
Gears catch too soon, and you hear a grinding noise when trying to shift up.
Rpms shoot up high for no reason with the slightest tap of the gas pedal while you are already moving.

All of this happend to me when my orignal clutch went about 1 1/2yrs. ago.