I do project work but analyze: should I require retainer minimum? Map the retainer structure: minimum monthly commitment for ongoing work. Calculate: if I required $1k/month retainer, would I get more stable income? Show me the retainer justification: why retainer, what it includes. Give me the transition playbook: move from project to retainer model. Include: how to present retainer to existing clients, what to include in retainer, and whether project work is creating income instability.