There is an In-N-Out Burger here in Glendale and another in Tujunga (northwest of Glendale). They sell hamburgers, cheeseburgers, french fries, shakes and sodas. That's all. At almost any time of day when In-N-Out is open, ten to 20 cars will be lined up in the drive-thru lane and along the curb. I can't explain its popularity. Every time I drive past, I feel like yelling to all the motorists in line, "People, it's just a plain old hamburger!"