David, Christy and Noah Swindlehurst are practicing new math at their Eden Prairie town home -- minimal addition, maximum subtraction.
While the tradition for most young American families is to acquire more, the Swindlehursts are determined to get rid of as much stuff as they can spare.
"We just worked our way through four dressers, and now we're down to two," Christy said, as David reluctantly parted with some T-shirts that held sentimental value.
As 10-year-old Noah sat on an area rug, surrounded by toys and sports equipment he was giving away, his dad joked, "If you're on the rug, you're gone."
The Swindlehursts are part of a growing national movement of personal downsizers, people who are simplifying their lives -- and spending habits -- by paring down their possessions and resisting the urge to buy more.
A natural spinoff of the trend toward living green, replacing the desire to acquire with an urge to purge is catching on everywhere from the blogosphere to progressive-minded neighborhoods.
One subset, "The 100 Things Challenge," was Christy Swindlehurst's initial inspiration. By daring people to keep only 100 things, the challenge gives would-be downsizers a solid, if rather drastic, number to shoot for.
Launched by a San Diegoan named Dave Bruno three years ago, the grass-roots effort has picked up a Facebook fan following and a book deal -- and yes, there's a discussion on Bruno's website about the validity of a guy who advocates shedding everything now producing thousands of books.