I don't know how to present myself nor do I know how much I need to charge my customers. I have a meeting with two potential clients, at the end of the week. I am starting a full-service PR firm and will be writing press releases, setting up social media accounts, etc. I've seen people online say that they charge $150/hour, and I think one person asks for a retainer. I've been getting some advice from a non-profit, and they said to put a cap on how much a campaign could be. I don't know what their needs are. That's my problem. Please help!