Arizona → California · Interstate 10
Before turning the key for Los Angeles, California, on the homeward run from Phoenix, Arizona, do a quick inventory sweep of onboard equipment: proposal binder, undelivered promotional items, and visitor badge should each go into a separate compartment so nothing slides into the footwell during a sharp brake. Interstate 10 accepts the 678 km (421 miles) of the return in roughly 6h 27m. Pulling out of Phoenix (the fifth-largest US city and capital of Arizona), the road eventually puts the driver back in front of the urban skyline of Los Angeles (the second-largest US city and entertainment-industry capital). Refueling sits near $56.67 for the same 61.6 liters (16.3 gallons) at the EIA national average benchmark. Return reimbursement, calculated against $0.43/km, returns $291.54 into the driver's wallet. Snap the closing odometer with the phone camera and attach it directly to the Clara receipt — internal controls accept photographic evidence without a supplementary spreadsheet.