An old IRC convo that applies here:

<wolf> 1. Save every Free Credit Card Offer you get, Put it in pile A

<wolf> 2. Save every Free Coupon You get, put that in pile B

<wolf> 3. Now open the credit card mail from pile A and find the Business

   Reply Mail Envelope.

<wolf> 4. Take the coupons from pile B and stuff them in the envelope you hold

   in your hand.

<wolf> 5. Drop the stuffed to the brim envelopes in your mail and walk away

   whistling.

<wolf> I have now received two phone calls from the credit card companies

   telling me that they received a stuffed envelope with coupons rather

   then my application. They informed me that it they are not pleased that

   they footed the bill for the crap I sent them. I reply with "It says

   Business Reply Mail" I'm suggesting coupons to you to ensure that your

   business is more successful. They promptly hang up on me.

<wolf> Now, I did this for about a month before it got boring, so I got an

   added idea! I added exactly 33 cents worth of pennies to the envelope

   so they paid EXTRA due to the weight. I got a call informing me about

   the money, I said it was a mistake and I demanded my change back. After

   yelling at the clerk and then to the supervisor they agreed to my

   demands and cut me a check for the money. I hold in my hand at this

   very moment a check from GTE Visa for exactly 33 cents.