See article what's your sales process.
If you're a car mechanic, who's willing to give a discount..maybe an oil change or maybe you're a beautician who's prepared to give a free trim with the color set or whatever it is that you're willing to put together. Put together a package that has a dollar value associated with your services.
And the question you should be asking yourself is: How much am I willing to pay to get one customer? Introducing someone to your sale cycle to become a reoccurring customer, patient, client, or somebody who's going to want to my services someone who's going to refer others to your services possibly.