Kyl it's been so hard but it will be worth it. Dh & I have to keep making sure we delete our text messages. (we text each other at work each morning with the how many sleeps countdown). I'm so paranoid about them finding out now when we've kept a secret this long. There have been so many times when we've nearly let it slip. DS 12 keeps growing out of his shoes rapidly as he's having a major growth spurt and I so wanted to say "in 2 weeks we will get you new basketball shoes in America". Then he found some he loved on sale and wanted to buy them with his own money and we wanted to say "no, save your money and don't get the shoes yet", but we couldn't so we will give him that money and extra money back the day we leave. He will just get some over there in the next size up which will probably fit him next month anyway, hehe. But there have been so many times when it would be so much easier if they knew.
Now we are trying to find a box big enough to put the helium balloon in. It's 69 x 53 cm.