You will need to organize all of your service provider contact information on one sheet if possible so you can refer to it quickly when you are making your confirmation calls and coordinating the wedding. I usually make a separate document but you can simply add the service provider information to the budget to minimize the number of documents you have to keep track of. You will want to list the service that is being provided, the company, the contact person, the mailing, email and web addresses, the phone, fax and cell numbers. If you want to use this as a checklist when you are confirming services, you will want to add columns that record when you made the confirmation call, when you sent, emailed or faxed the order of events, and when the receipt of the order of events was confirmed. If you want to use the service provider sheet as a coordination check list, you will want to add columns recording the arrival of the service providers and a place where you can keep track of their final payments. You may want to make a coordination version of the service provider list that does not include any service providers that will not be providing anything during the wedding trip such as your bridal dress designer or salon.