I recently tried a simple sourdough loaf with 3 changes from my typical process: (1) an overnight BF schedule, (2) adding a bit of honey and olive oil to the dough, and (3) using a cold, month-old starter straight from the fridge without any additional refreshment. Very impressed with the final bake! The overnight schedule is super convenient for me, the honey and olive oil make for a lovely, soft crumb with just a hint of sweetness, and the effectiveness of the old starter straight from the fridge was definitely a surprise.