Faulty USB Port (Broken but not broken..)

For sometime now, my rear USB stopped working - I THOUGHT it had malfunctioned, but I randomly tried something today and it kind of fixes it.
For the USB port to work, I have to push down on the connected device (push the USB head downwards) for it to work. Maybe something got moved around and the power isn't getting through properly.
What can I do for now (besides taking it to an Apple Genius Bar, which I won't be able to do for another couple of months)?
Thanks in Advance,

Genius reservation http://www.apple.com/retail/geniusbar/
check warranty https://selfsolve.apple.com/agreementWarrantyDynamic.do

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