Valentine’s Day tends to divide people into two camps: those who have the urge to hug someone, and those who have the urge to dry heave. But whether you love the holiday or just love to hate it, getting through it in one piece can sometimes be more stressful than a junior high Valentine’s Day dance. Whatever camp you fall in, though, take heart: Here’s a handy cheat sheet that will arm you with everything from its interesting origins to a much better flower choice than those boring old roses.

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