Choose one home
Keep service invoices, inspection records and vehicle documents in a consistent place. A physical folder or private digital folder can work; choose the format you will actually maintain.
Separate originals and working notes
Store original documents securely. Use a separate page for appointment notes, questions and reminders so that informal observations are not confused with a service record.
Update it after each visit
Add the invoice and mileage after a service appointment. Note any follow-up the provider recommended and where the supporting details can be found.