Is word of mouth the best form of marketing to rely upon when you’re just starting out?

Not when you’re just starting out, why? Because you will not be able to get enough people spreading the word about you. I know you’ve got family and friends, but in my experience they are not going to bust a gut to get you clients. It’s nice when it happens, but please don’t rely upon it, you need to incorporate a marketing strategy to really get the word out there about your personal trainer services, word of mouth can be part of this but should not be the main part.