Originally Posted by
k3k3
It still helps. I went to Mexico for a day trip from San Diego once, when I tried to re-enter the USA my UK passport was not sufficient to permit entry, a quick flash of my Travel Order and it was "Welcome and have a nice day sir".
So a flimsy piece of paper that you could print off at home got you into the USA and your passport wasn't good enough? I think you are making that up. You just wanted to tell everybody that you have been to San Diego and Mexico.