Sampling can be used for many reasons. You want someone to try your brand. You are new and you want to introduce yourself to potential customers. You want people to get used to whatever your product is. Be it something people ingest, something people slap on their face, gel their hair or add to their food.
Problem is when you sample, how many are you giving away for free? Is it in enough frequency that it creates a habit? Is it in enough quantity that your brand starts to wedge itself into the life of your potential customer?
Free samples maybe the one way you can be openly covert in seeping into your customers life.
Are you using free as your new Trojan horse?