Check. I-800 went out in overnight mail to USCIS. Now on to the DS-230. How does anyone do this without going crazy from anxiety? I sent three questions to the agency today, including one that they had already answered on the very first page of instructions-highlighted in yellow, no less. It brought back memories of checking, double checking, triple checking....the contents of my backpack over and over again when I was in Beijing. But then one thing is checked off the list, and for a brief (and fleeting) moment, you feel accomplished and in control!