If you're like me, the occasional coffee is all it takes to get a boost of energy on a particularly drowsy morning.
But for those who need a little extra caffeine help, there are other ways to get that buzz.
According to the Mayo Clinic, most adults can safely consume about 400 milligrams, or four cups of coffee, in a day. More than that and you risk raising your heartrate, not to mention feeling jittery and irritable.
Here are the crazy real ways you can get your coffee fix without ever taking a sip.