Invoicing is a crucial aspect of running a first aid training business. It not only helps you keep track of your financial transactions but also ensures a smooth and professional relationship with your clients. By creating well-designed and informative invoices, you can establish credibility, facilitate prompt payment, and maintain a healthy cash flow for your business. In this article, we will discuss the basics of invoicing, step-by-step instructions to create an invoice, tips to make your invoice more effective, and strategies to manage your invoices for better cash flow.