Why would you be riding the clutch while stopped? You don't have to hold the clutch if you're in neutral. Where, IMO, you should be if you're stopped and not just about to launch. When you're coming to a stop you'll have to shift anyway, instead of putting it into first (which I've never heard of anyone doing while the car is moving), drop it in neutral and leave it there. Your foot brake will hold the car in place while you're stopped. When it's time to go, one fluid action should put you in gear, clutch and accelerate. Get used to it and your car won't even move an inch in the wrong direction.