How much should swear words be worth?

After having our kid, we’ve realized that we have terrible potty mouths. We’re trying to reign it in before our kid grows up to be that kid. So we’ve decided to implement a swear jar!

But so far, we’re having a hard time agreeing upon:
• Which words should be included?
• How much words should cost?
• Where the collected monies should go?

For instance, my husband doesn’t think shit or damn should be included. He also thinks we should give the money to Sarah Palin’s campaign fund. I know it should be a punishment for swearing (we are not Sarah Palin supporters), but that’s just crazy talk.