Got this in the mail a week or two ago:

"Receive 20% off our best fare on any Amtrak train for travel completed by July 31, 2004. Plus, we will award you with 500 bonus points per trip completed within that timeframe. Just go to www.amtrakguestrewards.com/register and register for promition IN006 to receive your discount code. Use the provided discount code when making your reservation."

Blackouts: July 2-5