Razorsharpnc.com/book-online Clean your shears daily. Wipe all the hair from the inside of the blades, this attracts moisture which can rust your shears. If the blades have grime or hairspray on them, take a Handy Wipe and rub all this off. Never leave shears dirty because it will cause problems down the road.
Lubricate shears with shear lube only, it contains silicon and a light solvent. Not lubricating your shears can cause the screw to rust and not stay tight. There is moisture in your pivot from scissoring, lube gets rid of it. Not lubing can cause tiny pieces of hair and pet dander to remain in the pivot. This will tighten the tension, slow the shear down, and may cause a binding feel when scissoring. Lube the shear, then open and close them a few times to get the lube around the pivot. Convex shears need to be lubed more than beveled shears. Never use blade oil on a shear, it will stiffen over time.