Penguin mints used to be 2 = 1 cup of coffee. I used to down a ton of them while out drinking coffee at Beth's (a local greasy spoon), used to get incredible buzzed. Now a little caffeine makes me light headed I think I over did it a little too often. Truly impressive would be to brew coffee with caffeinated(sp?) water, never did b/c the idea scared me, hehe.