Following is a list of suggestions compiled from various heralds throughout the SCA, with an explanation why these suggestions were made. Some of the suggestions deal with a particular type of event, other deals with the needs of any event. Determine which suggestions apply to your event, implement them and you will find yourself a long way toward taking care of everything you will need to do. Get other heralds to help. This is not as hard as it may sound.
Most heralds are delighted to help.
Simply contact any herald you know, tell them what's going on, when and where, and then ask if they can help. Whether they can help or not, ask them if they can recommend anyone else who might be interested in helping. You can never have too many heralds to share the duties. The main thing to remember is that some people are book heralds, some people are vocal heralds and some people do both. Don't try to fit someone into an area they are not interested in.