A direct mail project requires careful planning. Key considerations include mailing objectives, creative formats, postal specifications, budget, timing, printing requirements, personalization needs, addressing methods, vendor capabilities, envelope requirements, estimates with line items, quality control checkpoints, and asking questions. Failure to address these details upfront can lead to errors and cost overruns that exceed the budget. It is important to overcommunicate with clients and vendors to ensure all requirements are understood and can be successfully fulfilled.