Crack Bars

Preheat oven to 320 deg F. Melt butter and pour in a 9x13 inch pan. Crush graham crackers in a bag or use a blender. Sprinkle over the butter and pat it down. Add all 3 of the bags of chips. I like to alternate between them. Sprinkle coconut over the top, drizzle the sweetened condensed milk - yes the whole can, and bake for 20 minutes or until coconut starts to brown. Let it cool for 20 minutes, then cut and serve.