How do you use 4-wheel drive on a Toyota Tacoma?

I’m always forgetful when it comes to filling the gas tank on my Jeep Cherokee. While I haven’t actually run out of gas so far, I want to make sure I’m covered if the gas light comes on. How far can I drive my Cherokee when it’s on empty?

What’s the best way to get my Honda Civic radio code? I bought it last week from its last owner, and the only problem is that the radio says I need a code to use it. I’ve been ignoring the problem for the last few days, but it’s about time I take care of it.

How do I avoid overpaying on car repairs? I've heard horror stories about people being ripped off by car repair shops.