"Whatever floats your boat" Brownies

I have been trying out a lot of new recipes lately and this one is AWESOME! I'm not one who loves to bake (love to cook, hate to bake! Its too hot here!) but this recipe is so dang easy why wouldn't I make it?

Ingredients
1/2 cup butter, melted
1/2 cup unsweetened cocoa
1 cup sugar
2 eggs
2 teaspoons vanilla
1/2 cup flour
1/4 teaspoon salt

WHATEVER FLOATS YOUR BOAT IDEAS
1-2 cup chocolate chips (semisweet, white, butterscotch, peanut butter) or raisins, or chopped maraschino cherry or chopped nuts or M&M's or Reese's pieces or miniature marshmallows. Just whatever you like!

Directions
1 Preheat oven to 350°F.
2 Grease an 8 inch square pan or line with foil.
3 In a medium bowl combine melted butter and cocoa and stir until cocoa is dissolved.
4 Add sugar and mix well.
5 Add eggs one at a time and stir until well combined.
6 Stir in vanilla, flour and salt until you no longer see any flour (do not over mix).
7 Fold in "WHATEVER FLOATS YOUR BOAT"!
8 Spread in pan and bake for approximately 25 minutes.
9 DO NOT OVER-BAKE -- your brownies will come out dry. Adjust time/temp accordingly for your oven. If you do the knife/toothpick test, it should come out with moist crumbs, not clean.
10 Cool completely before cutting into squares.
11 For double recipe, bake in 9x12 pan and add 5 minutes to baking time.