My tip for a nice long clutch life is to only engage it when you plan to change gears.
So, when you're at a light, put it in neutral. When the light turns green, clutch in, put it in first, and let the clutch out smoothly as you depress the gas pedal.
When you are coasting off the freeway, put it in neutral and brake gently. Downshifting is hard on a clutch, even when you rev-match. Brake pads are far cheaper to replace too.
Hope this helps!
