Are Virgos know-it-alls... or just know best?
The sign of Virgo is famous for being able to separate the wheat from the chaff. You're extremely discriminating in your work, where you excel at anything requiring organization, restructuring or editing.
You're also the one your family members turn to when a big gathering has to be planned. You just have a head for this stuff.
One danger of being so discriminating is that you can be so busy saying no that you miss out on some of life's more interesting experiences. Virgo's challenge is to learn how to say yes a little more, while still being true to yourself.