Coat the overhead torsion springs mounted above roller tracks with a garage door lubricant. All springs will eventually break because of metal fatigue and/or corrosion, but lubing them at least once a year will make them last longer. Spraying can be messy; it's smart to protect the wall behind the spring with a piece of cardboard. Garage door lubricant is available at home centers. Lube the rollers, hinges and track while you're at it. Learn more garage door maintenance tips.
Lubricate the chain or the screw on your opener annually with white lithium grease. Spray-on versions are available at most home centers. Lubrication will make the opener's operation smoother, quieter and extend the life of both chain and opener.