With the advent of spring on March 20, genteel drinkers will once again pine for the sublime pleasures of a well-made gin and tonic. Yet with high-quality gins now available in better taverns and garden parties, most bartenders still reach for the gun to add the appropriate fizz. This year, insist on a tonic worthy of the spirit it's marrying. 

All-natural Q Tonic ($7 for a 750 ml bottle) is crisp, clean, dry, and delicious. It's made with hand-picked quinine from the Peruvian Andes (I'll accept nothing less), and uses organic agave as a sweetner. Try it with an upscale gin like Nolet's Silver, Bombay Sapphire, Hendrick's, or Aviation and a thick wedge of fresh lime and swoon your way to summer.