Review: Drinkmate InstaFizz

Big on bubbles? Keen on carbonation? Want some of that sparkling sweetness not just at home but on hikes and around camp, too? Then pick up a Drinkmate InstaFizz, a portable soda-maker that can turn any cold beverage into immediate effervescence. The 16-ounce bottle itself is made of stainless steel, which keeps things cool; add some ice for longer chill times or in particularly warm weather. Screw in a CO2 cartridge, twist and shake (the bottle, not your excited body), and voila, you've got bubbly. $35; idrinkproducts.com.