The debate over “scratch versus store-bought” often focuses on quality, but the financial reality is just as compelling. While some grocery staples feature massive retail markups that reward DIY effort, other items involve complex processes or inexpensive raw materials that make home production a losing proposition. Mastering the distinction between high-value DIY projects and low-yield chores is a fundamental skill for efficient household budgeting. I will examine eight items that deliver consistent savings when made at home and four that are rarely worth the time.