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

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

3. Now open the credit card mail from pile A and find the Business Reply  Mail Envelope.

4. Take the coupons from pile B and stuff them in the envelope you hold in your hand.

5. Drop the stuffed to the brim envelopes in your mail and walk away whistling.

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.

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.