I just got an email from Kotex with this offer! Below is what I copied from their site. I would love to not have to spend money on this for a year. I also love that they support Box Tops for Education. I'm going to enter monthly!
O.K., so getting your period isn't exactly like winning the lottery. But you can still win big with Kotex®. Every 28 days you have a chance at winning a year's supply of your favorite Kotex® products. That means you can spend your cash on other important stuff like MP3s, shoes or maybe a year's supply of chocolate.