It's not enough the Post Office is raising stamp prices Monday -- 41-cents for first class. They're adding new rules for the shape and size of packages -- and they're not too clear on what those rules are.
If something's too thick -- more than a quarter inch -- or if you stiffen an envelope with cardboard to protect photos or DVD's of the kids you're mailing to Grandma, you may have to pay more.
MAY is the key word, because few people understand exactly how the Postal Service's rules will charge you to mail it. (CNN)