Paul McAlary advises Hannah on redesigning her kitchen, emphasizing the importance of proper layout and fixing existing mistakes. He suggests moving the stove and sink to improve ventilation and countertop space. Paul suggests relocating the hot water heater to the mud room. Paul warns against the financial and safety risks of not properly designing the kitchen. Such as reduced home value and fire hazards. He recommends a symmetrical layout with a single large sink and a dishwasher. He stresses the importance of hiring a competent contractor who values good design. Paul also advises against splurging on expensive but non-essential features.