Plywood on the Roof
Building a house is like a giant relay race.
When you hand the baton off to the next stage, you are either giving them an advantage or a disadvantage. But when you DIY it all yourself, you are running the entire race yourself. And you are always thinking about the next step, and how decision you make in this step are going to affect later steps.
Let me give you an example.
Let's say we framed up the walls, and the studs are randomly placed, not 24" o