Triple USA

I went to the USA three times in a row on business. I don’t have any photos. First, I had a meeting in SF in March. Second, I went to Washington, DC to attend a conference. Third, I visited SF again. I bought Napa Valley’s wine and See’s chocolate for souvenirs. Unfortunately, I don’t have any photos left from that time. I wonder where the photos have gone. *23/3/14, 24/4/14, 15/6/14