Basic pruner care
Store pruning shears in a bucket of sand. It keeps them clean and rust free because sand wicks moisture.
Always disinfect shears with rubbing alcohol or white vinegar between uses to avoid disease transmission among plants followed by wiping them with WD40 to prevent sap build up and to make regular sharpening easier.
To sharpen your shears use fine sandpaper, aluminum foil, or if very dull a ceramic stone sharpener. With sandpaper, fold a piece in half gritty side outward. Make a few cuts in the paper, get a new piece of sandpaper and repeat.