We're all familiar with a little cross promotion. Buy a plane ticket and you're likely to get hit up for a hotel reservation and a rental car. But check out some of these cross-promos from the Signspotting series. (Okay, a few might not technically count as cross promotions, but when you're sharing a sign, it's a little hard to tell.) Stumble across a bizarre cross-promo sign? Send it in at signspotting.com (and follow me on Twitter for quirky travel updates and funny signs).
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