Your choice but a low milage car sometimes needs more checks since parts can deteriorate due to lack of use.

If you want to reduce your motoring costs sell the car and use the bus.

Cars deteriorate in some respects as much through age as mileage. I appreciate that it must be important for your wife to have the freedom of a car (or presumably you wouldn't still keep it) but if possible you should take the car out yourself, say twice a month, for a good run of at least 20 miles. It'll last far longer if you do.

Depending on the area you reside in, public transport may not be suitable or have limited availability.

Where do you have the car serviced currently - main dealer or an independent? Some main dealers operate their own servicing schemes for cars over three years old. For example, when we had our Mazda 2, we had the last service/MOT done using the dealers own servicing plan. This level of service we chose gave a slightly more comprehensive service than the Mazda one together with a half price MOT, and for the two worked out approx £50 cheaper than the four year Mazda service and MOT.

Why not ask for the views of the service manager as regards whether all the items due on the next service are needed. Presumably as the last service was an interim, the next service due will be a major service.