Unlike bleach, borax has no odor but it does produce an oxidizing/ionizing sensation that smells like fresh snowfall.
A simple dilution of 1/4 cup powdered borax stirred into a gallon of very warm water does a great job sanitizing common household “touchy/feely” stuff like bathrooms, kitchens, door knobs, letter box flaps, window ledges, keyboards touchscreens and cell phones (be sure to wipe dry immediately afterward to avoid streaks)