In places like the highway during stop and go traffic try following further away from the car in front of you. I would not hold the clutch pedal in because that will probably wear out your release bearing/throw out bearing faster. Thats an expensive bearing to replaces (labor, the part is cheap) Try to plan your driving when your in the type of traffic.

The more you operate your clutch the more the pressure plate flexes the more the clutch slips on the flywheel the more wear it takes.

On my GSR I had the clutch replaced maybe 20k ago. I drive the car quite a bit every year and my new clutch is holding fine despite very enthuastic driving. I treat it right though. I think the guy before me though didn't treat the engine or the clutch right though, which is why my dampener springs on the OEM clutch went to hell.