It looks like something you should just toss in recycling, and that's exactly what the sender is hoping you do with it.

If you're like me, you get tons of junk mail every week. I'll admit that most of the time I don't even open it, saving myself the time and hassle of reading sales pitches that I couldn't care less about. Luckily, one piece of junk mail caught my attention so I decided to peek inside. Boy am I glad that I did.

Earlier this month Oreo announced that they were giving away one million free candy bars. All you had to do was visit their website and fill out a form with your address and email. I couldn't resist the offer, especially since we tried out an early version of the candy bar last year and instantly fell in love:

I quickly surfed over to the Oreo website and signed up for my free candy bar. The next week I received an email saying that I was one of the lucky million, and I would be receiving my coupon in the mail.

I haven't really thought about it since then, figuring that I would just find an envelope from Oreo waiting in my mailbox one day. Well, it appears that Oreo is banking on people forgetting about the offer and hiding those free coupons in what looks like junk mail. Here's the envelope I received this week.

A. Boris

Nowhere on the envelope does it say "Oreo." Instead, the return address is from something called HelloWorld in Kalamazoo, which everyone knows is where all junk mail is born.

The bar codes and stars above the address are another telltale sign of presorted advertisements. It's as if the company went out of their way to make sure as many people throw out those free coupons as possible.

The only thing that saved me from missing out on my free candy bar was the bold word, "FREE" that could be seen on the coupon through the cheap, thin envelope. Luckily, it caught my eye and this is what I found when I opened it up.

A. Boris

So if you're expecting that free candy bar, keep your eyes open. It's most likely disguised as junk mail.