72 Hour Kit
A 72 hour kit is an emergency kit designed to support you in small to medium emergencies. As such it should be robust enough to entirely support you and your family for a minimum of 72 hours. PrepperWiki suggests a week as a better minimum.
Here is a breakdown of an example EDC kit.
9x MREs or canned goods per person
6L bottled water per person
Group medical kit
Fire starters / trioxane / esbit
Antiseptic hand wipes