Photo of the only Ford I want right now.

Here's the skinny. My sister in law has neglected scheduled maintenance and recently it bit her on a 2004 Ford Focus SE, 2.0L, 186,000 miles. (no coolant, overheated, gasket's fine. also had bald tires) She got it repaired, four new tires, and now wants to take better care of it. She wants me to write up a quick reference chart listing things to check weekly, monthly, and at various mileage intervals.

I haven't owned a car with over 170,000 miles yet in my life, so I don't really know what all to check besides fluids, brakes, lights, tire pressure, etc. ADVISE ME PLZ.