Ground transport is the quiet budget line that adds up fast. The right choice depends on the shape of the trip, not on habit, and matching the option to the day can save both money and stress.
For a single downtown meeting, rideshare is usually cheapest and simplest. For a day of scattered stops or a region with thin coverage, a rental gives you control and often costs less over many short hops. A car service earns its premium when timing is critical and you cannot afford to wait, such as an early flight or a client pickup.
Book the predictable legs in advance, especially airport pickups at peak hours. Surge pricing and long queues are the hidden cost of deciding at the curb.