Register today for Amtrak's "Crazy for Trains, Loco for Points" promo where you can earn double points on each of your first four Amtrak® train trips and triple points for your fifth trip and beyond, March 16 through May 8, 2009. Plus, earn quadruple points for any trip taken on National Train Day, Saturday, May 9, 2009. That's on all trains and every route.Registration is required online or by calling 1-800-307-5000 (option 2), using registration code 31609.