The 109-year-old house I'm buying has almost all original wood trim on baseboards, doors, and windows. I can't tell if they were coated with varnish or shellac, but the wood has a "crackled" look to it now and an uneven surface.
Refinishing might be in the future, but for now I'd like to just clean it all up and make it smooth.
I expect some ultra-fine steel wool is necessary, but how do I go about determining what to use with it? Mineral spirits? Alcohol? Which products work on varnish and which work on shellac?