There's an actual name for the cries and whining and desperate pleas from children who want something very, very badly. It's called "Pester Power." Advertisers rely on it year round but no time more than during the Holiday season. Parents may scold kids for that sort of behavior, but the message is clear. If your children want something, you may feel a great deal of pressure to get it even if you really can't afford it. So we offer some last-minute advice to parents and other family members who can't afford to spend a lot this Holiday.