How do you deal with imposter syndrome?

Imposter syndrome is a huge issue, especially in the tech industry.

I've started a collaborative blog site to try to conquer this. Anyone can write something, from your experiences to imposter syndrome, to a mistake you made. Hopefully this will help readers to understand that they're not alone.

How do you normally deal with this feeling of inadequacy? Does it pass for you? Do you let yourself feel that way, or do you take steps to conquer it? What are your tips for overcoming imposter syndrome?