It's unfortunate that head light bulbs can't last forever, Nothing seems to be more annoying than a bulb that burned out. It weakens your view, and has this weird way of making you feel silly as you drive.
Make sure the front end of your car is always in perfect condition with a set of aftermarket lights that at least diminish the frequency at which you'll need to replace headlights. Tire Rack offers Hella lighting and PIAA lighting products, both of which do just that.
Search by vehicle for a list of replacement lighting products, or click here to see a complete list of head light bulbs.