It's got NGK plugs and wires, and I changed the fuel filter last fall as well.
I have an O2 sensor for it but haven't put it on yet. I can solder and heat-shrink the connector on there so it's right.
Trackdog also flushed my brake and clutch fluids.
I've run Mobil high-mileage oil in it, 3 months/3000 miles.
High miles on the car, though. 189400 or so. It runs really well, doesn't burn oil, and gets about 28mpg on the highway without AC. 25 with AC. With mostly city driving I get 20-23 mpg.