Common: accepted, banal, bourgeois, casual, characteristic, colloquial, comformable, commonplace, conventional, current, customary, daily, everyday, familiar, frequent, general, habitual, hackneyed, homely, humdrum, informal, mediocre, monotonous, natural, obscure, passable, plain, prevailing, prevalent, probable, prosaic, regular, routine, run-of-the-mill, simple, stale, standard, stereotyped, stock, trite, trivial, typical, undistinguished, universal, unvaried, usual, wearisome, workaday, worn-out
Sense: ability, appreciation, atmosphere, aura, brains, capacity, clear-headedness, cleverness, cognizance, common sense, consciousness, discernment, discrimination, feel, feeling, gumption*, imagination, impression, insight, intellect, intelligence, intuition, judgment, knowledge, mentality, mind, premonition, presentiment, prudence, quickness, reason, reasoning, recognition, sagacity, sanity, sentiment, sharpness, smarts, soul, spirit, tact, thought, understanding, wisdom, wit
Commonsense: astute, commonsensical, cool, down-to-earth, hard-headed, judicious, levelheaded, matter-of-fact, practical, rational, realistic, sane, sensible, shrewd, sound
And yes, a rare commodity.
