Why pay to perspire? “Uneven terrain—sand, concrete, grass—is a challenge to both body and mind,” says Jessica Smith, star of the DVD 10 Minute Solution: Quick Tummy Toners. “Do push-ups and tricep dips on park benches; jump over hydrant hurdles; hit the stairs.” Or make a $15 investment in bands, jump ropes, cones or sandbags. “Even a piece of masking tape on the floor can create an amazing cardio agility workout,” she says.
