Would you trust a homebuilder who operated without blueprints? Sure, they might have years of experience in carpentry, plumbing, and electrical work, but if they were building your house, wouldn't you want them to have planned out construction ahead of time? And wouldn't you demand to see those plans before they started?
Think of a business plan as the blueprint for your cleaning business. Much like architectural plans, your business plan is an important coordinating and goal-defining document that helps you comply with licensing requirements, secure loans and investments, and grow your business.