How Much Would You Spend for Your Dream Body?

The $105 Plan

Who: Dulce Tanelli, 41

Before weight: 145

After weight: 105

A pair of sneakers, $80, and The Body Ecology Diet, by Donna Gates, $25

Walks or jogs with her dog four to six miles in the morning and two miles in the evening most days

"No wonder my name means 'sweet': Vending-machine treats used to be my best friends, and I would often eat an entire gallon -- not a pint, a gallon -- of ice cream at night.

"In November 2006, I visited my family in Portugal. They were pretty ruthless about my size. It was hard to hear, but when I got home, I bought a pair of sneakers and started walking.

"I felt good, but I was still eating candy and cookies all day. A friend recommended The Body Ecology Diet, which focuses on avoiding empty calories and adding in new vegetables such as fennel and bok choy.

"When I reached my goal in February 2007, I booked a trip back to Portugal. My family couldn't believe the difference. I love that I did this on the cheap. It's easy to make the 'I can't afford a trainer' excuse, but walking outside is free."