Its vs. It's

Common problem, I see it almost daily... people use the wrong form of "it".  Here's your answer:

It's:  Means "it is", or "it has". Example:  "It's in the laundry"

Its:  Is the possessive form. Example:  "That dog is its own enemy".

Even in today's era of texting, email, etc., it's important to stick to correct grammar and punctuation in letter writing... more on that another day!