I'm an avid iced tea drinker who averages about three cups a day, and I'm constantly looking for ways to make my habit a little easier. Buying twenty or so individual iced teas each week can get costly (not to mention the waste involved in disposing the plastic cups), so I brew at home. After trying out a few reusable cups, I stuck with this 24-ounce BPA-free tumbler. Durable, dishwasher safe, and virtually leakless thanks to a quarter-turn lid seal, it's also got a no-slip grip to prevent any cup-sweat issues, and the reusable straw doubles as a handy ersatz stirrer.
Copco Sierra Cold Tumbler, $7.99 at Amazon.com