Saving at the last dance: Prom-goers cut costs, while other splurge on high school ritualThis year’s prom kings may swap their tuxedos for suits and some queens will accept their tiaras in secondhand cocktail dresses while they slow-dance in a decorated gymnasium. Spam, Kool-Aid, other staples in limelight as companies raise ad spending on low-price itemsNEW YORK — The frill is gone. |