There are plenty of travel mugs to choose from out there—from the cheap plastic kind sold at your corner convenience store to ...

However, during an upside-down leak test, we noted that the mug ... picnics — we can't envision a scenario where this travel coffee mug wouldn't be useful. And under $20, it can't be beaten ...

Coffee? If it's that last one (other ... Aside from that, we also filled the mugs up and held them upside down and on their ...