How can I fashion my shower/bath tub faucet stop dripping? The noise is driving me insane, not to mention how big...

The noise is driving me insane, not to mention how big my water bill will-
I penny-pinching, I'm concerned about my wasting hose down and want to save the world from the evil Global Warming and disappear water for the fishes.

Basicly what happen is I turn off my faucet, as far as I can verbs the knobs, and it still drips. And drips. And drips. I turn the little lever backbone and forth from the bath faucet to the shower leader, but this only help a little. What should I do?
How do I fix my toilet?!?
Answers:    Take the knob off - verbs out the cartridge(s) - replace the o-rings - replace the knobs and viola! Go to Lowes or Home Depot - they will tramp you through it step by step! Good Luck!
Problem near my fridge, sea leak?
You can repair the faucet. It probably needs a washer, extraordinarily simple to install. Just go to Lowes or Home Depot and recount them you have a leaky faucet. Go to the plumbing department. They will grant you a repair kit. If you stipulation tools, you can get them near also. Go home, install the washer and the leak will stop.
I hold a sulfur smell coming from my...