What Should You Do Before a First Appointment?

When booking a service or appointment for the first time, I always wonder whether there’s anything I should do beforehand to make things go more smoothly.

For example, if you’re arranging a home service such as Driveway Pressure Washing, would you normally move your car, clear away outdoor furniture, or ask the provider about any special preparation?

I think having a simple checklist before a first appointment can save time and prevent misunderstandings. What do you usually do to prepare for something new, and is there anything you wish you had known before your first appointment?