No matter what you’re doing on the go, a good cup of coffee or tea is the perfect companion. But, if you want your drinks to stay hot longer than a few minutes, you need the right to-go mug.

Gather ’round, card-carrying coffee connoisseurs! There’s a self-warming mug I’d be right selfish not to alert you about. Not only are reviewers saying it’s better than the slightly higher-priced ...