Preheat oven to 350°.

Put in a 9x13 baking dish:

   - 1/2 cup butter

Place pan in oven to melt the butter.

While butter is melting, crush crackers to make:

   - 1 1/2 cups graham cracker crumbs

When the butter is melted, remove the pan from the oven and tilt it gently to coat the entire bottom and sides of the pan with the melted butter.

Spread the cracker crumbs evenly over the melted butter.

Then add:

   - 1 cup semisweet chocolate chips

   - 1 cup butterscotch chips

   - 1 cup chopped walnuts

On top of the walnuts, pour evenly:

   - 1 can sweetened condensed milk (14 oz)

Sprinkle on top:

   - 1 1/3 cups shredded coconut

Bake until edges are golden brown; start checking after 20 minutes.