So your hot dog stand offers something for free. But remember that your freebie is kinda lame and everybody kinda knows it and nobody is really forking over actual cash out of gratitude for free napkins. Free is highly overrated. If you have a hot dog stand, the broad appeal of your product means virtually anyone can be converted to a customer, whether they came for your ridiculously excellent napkins, clean washrooms, or scathing wit. But, if you sell '82 LeSabre windshield wiper screws, then you might want to be a little more targeted in your traffic generating efforts.
Nobody listens, of course.
They know that the Internet is the fabled El Dorado where the rivers run gold and cash is as common as dust bunnies. Leap before you look, quoth the lemming. Tricks are for dogs. Stick to basics. It's okay to work in your underwear in your partially remodeled basement as long as everyone thinks you're in a suit in a high-rise on Success Avenue.