Also - let the gears slow you down, as you release the clutch after changing down a gear, by releasing the clutch slowly you will feel the car pull back slightly. Now when I'm on long stretches of road with no one around, or coming to a red light with no one behind me I practice slowing to almost a complete stop without using the brake, simply by using 4 - release, 3 release, then finally, 2 release, brake, clutch, brake. (Or more specifically slight brake, clutch -just as car feels it might begin to shudder, brake
Brakes pads are a lot cheaper than a new clutch.
Try slowing down an articulated vehicle using the engine and you'll find yourself in hospital or laid out.