Start with one record for each customer
Use a consistent customer name and contact detail, and capture only what your business needs to complete and follow up on the work.
Give every job a clear next step
Record what the customer requested, the agreed amount and the current work status. A short status list helps staff answer what is still waiting, underway or ready.
Keep payment and expense records separate
Record money received against the relevant order and operating costs as expenses. Review balances often and use a qualified accountant for tax and formal financial reporting.