Preheat your oven to 350°F (175°C) and grease a loaf pan.
In a large bowl, beat the sugar, butter, and cream cheese until light and fluffy.
Add the eggs one at a time, mixing well after each addition.
Stir in the orange juice and zest.
In a separate bowl, whisk together the flour, baking powder, baking soda, and salt.
Gradually add the dry ingredients to the wet mixture, mixing just until combined.
Fold in the optional add-ins if using.
Pour the batter into the prepared loaf pan and bake for 50-60 minutes or until a toothpick inserted into the center comes out clean.