Us MagazineGeorge W. Bush's daughters point out that they were only 7 years old -- the same age as Sasha -- when their grandfather, George Bush, was sworn in.
Look back at all the kids who lived in the White House.
Said the twins: "If you're traveling with your parents over Halloween, don't let it stop you from doing what you would normally do. Dress up in some imaginative, elaborate costume (if you are like us, a pack of Juicy Fruit and a Vampiress) and trick-or-treat down the plane aisle."
Watch Obama's Inauguration speech.
They also talked about raising pets in the White House. (Obama has promised the girls either a Labradoodle or a Portuguese Water Hound.)
See photos of stars with dogs!
"Our sweet puppy Spot was nursed on the lawn of the White House. And then of course, there's Barney, who most recently bit a reporter," Barbara and Jenna wrote. "Cherish your animals because sometimes you'll need the quiet comfort that only animals can provide."
The twins also suggested Malia, 10, and Sasha get into a little bit of trouble.
"Slide down the banister of the solarium, go to T-ball games, have swimming parties and play Sardines on the White House lawn. Have fun and enjoy your childhood in such a magical place to live and play."
See the Obama family album.
And take advantage of every opportunity, they added.
"When your dad throws out the first pitch for the Yankees, go to the game," they advised. "In fact, go to anything and everything you possibly can: the Kennedy Center for theater, State Dinners, Christmas parties (the White House staff party is our favorite!), museum openings, arrival ceremonies and walks around the monuments. Just go. Four years goes by so fast, so absorb it all, enjoy it all!"
Read their entire letter.
