I give (free of charge) a t-shirt with a phrase on the front to catch peoples attention and my business info on the back to create awareness of my business. People will see this standing in line at the market, the bank, the DMV, etc. I get a call or two every week or so from the shirts. And I pick up about 10% of these folks as clients. I do a lot of work intended to get clients to be self sufficient, so I can’t speak to client retention. Most of my clients then refer me clients and come back to me if they have a new goal or issue to address or if they have fallen off the fitness trail and need help getting back in to the swing.