Santa Clara's tobacco factory, one of Cuba's best, makes a quality range of Montecristos, Partagás and Romeo y Julieta cigars. Tours here are lo-fi compared to those in Havana, and so the experience is a lot more interesting and less rushed. Buy tickets in advance at the Cubatur office. Beware, opening times can be erratic.
Across the street is La Veguita, the factory's diminutive but comprehensively stocked sales outlet, staffed by a friendly, ultra-professional team of cigar experts. You can buy cheap rum here, and the bar brews exquisite coffee.