The adopted underarm scent of teenagers is a sort of cartoonish freshness. Old men all smell like bay rum, whether by choice or because they’ve been drinking. If you’re presently a member of one of those two demographics, well, that’s just the lot you’ve drawn. If not, there’s a great olfactory expanse waiting for you, starting with deodorant. Some are all-natural, some are ludicrously indulgent and others will attract women en masse. Freshen up this summer with one of the best.