After bringing our baby home, I found a note from my mother-in-law demanding $600 for taking care of our dog during my labor. Jake promised to handle it, but I made a plan. I created a folder listing all the favors we’d done for her, like helping her move and paying for car repairs, and presented it as an “invoice.” She was furious, but I stood my ground, reminding her that family doesn’t charge for favors. She stormed out, and Jake agreed with me. At least she wouldn’t ask for money again—unless I had to pull out the folder