I second everything that has been said about photographs taken by a friend or family member. I have found that those tend to be more memorable (in a good way) than professional pictures.
Big caveat: If you decide to use a picture of yourself in a formal, make sure that it's not too low-cut, short, backless, etc. Remember that this picture is the only visual that the alumnae writing your recommendations will have of you (assuming that they don't know you personally). More modest is always a safe choice.
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the sun will always shine, our love will never end
as long as we are sisters, we'll always be true friends
alpha sigma alpha is always the one
wherever there is fun, there's ALWAYS ALPHA SIGMA!