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We didn't have one in the house but there was one in the parking lot of the investment co. next to us, basically 6 steps out our door.
They had to be making tons of $$$ from us because we used it ALL the time. The key is to make it cheaper than your average machine - if a regular machine on campus is 60 cents make it 50 cents on yours. You would not believe how jazzed people get about saving 10 cents on a can of pop.
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