List all of the services you offer so you that can be certain that you have a strategy to promote each. As you list each service, you should consider whether or not you really enjoy providing that service. If you don't enjoy providing the service, and want to maintain your ability to provide it, you should consider how you might delegate the delivery.
You should also make sure that you are always aware of all the services you provide as you interact with your contacts so you can educate your prospects about everything you can do for them.
Documenting your services also enhances your ability to explain them succinctly, which is important for motivating your prospects to ask questions about them.
You should review this section periodically because you may be developing new services and that you'll need a separate biz dev strategies for each.