At first, changing spark plugs felt intimidating. But once I bought a spark plug socket and read my manual, I realized it was one of the easiest maintenance jobs I could do.
I pull the old plug, check the gap on the new one, and screw it back in snug. The whole process takes less than 10 minutes, and I can instantly tell the difference when starting the engine.
Now I keep an extra set of plugs onboard just in case.