Gone are the high school pictures, the teddy bears, the single bed of Becky Gorman's youth. She now has college and travel photos on the walls, books instead of bears, and a queen size bed. But the purple-flowered wallpaper from middle school remains, and she is once again sharing a bathroom with her younger brother.

Gorman, 27, has moved back into the Wellesley house where she grew up. Ditto for Michael, 23. There are many reasons they're in their childhood home: their new business, the bad economy, the high rents. Nine months ago they started their own clothing line, Mahi Gold. They need to save every cent they can, and living with their parents rent-free has allowed them to do that.

Read More: The Boomerang Kids