Obvious common features of conferences are programs and speakers. Less obvious but also of great concern to conference organizers are budgets, facilities and residential accommodations, and attracting the audience or participants. Recommendations based on experience cover advance planning for theme, program, scheduling, handling speakers and registration, and arranging accommodations and social programs; advice is given on expenses, publicity, and last-minute pre-conference checks. Also important is the `atmosphere' generated by the organizers to welcome the delegates.