Whether you need an energy pick-me-up after work or school, a nibble before dinner, or something to keep family or guests happy until dinner is ready to serve, the term snacks and appetizers are almost synonymous these days.  Dips are easy, casual  and can me made ahead served with raw vegetables, crackers or crostini. Spiced or roasted nuts are a great nibble. And who can resist guacamole, deviled eggs or stuffed mushrooms? Here are a few ideas.