You can of course have mix of bound and unbound forms if you add a sub_form or two but this will still probably need some coding to automate and join any relationships between forms (if required). Also, a 'bound' form can have a mix of controls of bound (to a field) and unbound (no data values) items to provide a smoother interface that would otherwise be too clumsy by design to stick with just the one type.
Let's look at some of the business forms and letters that are needed in the catering business and then towards the end will discuss how you can get a hold of these documents. Letters and forms should be available for all aspects of managing customers. Welcome letters, thank_you letters, letters updating clients on any changes to your service or letters to thank customers for referring business to you all contribute to good customer relations. Documentation is needed for quoting and pricing, billing clients, issuing receipts and pursuing bad debts as well as for keep daily and monthly records of business cash flows.