Actually, there's a couple of things you can do.
First, you can turn any form you have into a custom AutoForm. From Design View for the form, goto Format - AutoFormat and click on "Customize." Now check the radio button for "Create a new AutoFormat based on YourFormName." You'll be asked to give the AutoFormat a name, then you're done.
Now, anytime you want to use this same formatting for a form, from the Form Wizard select the AutoFormat, or from form Design View goto Format - AutoFormat and select the AutoFormat you want to use. And here's the best part, you can do this to a form you've already created using another formatting, and it will change that form 's formatting to the newly chosen AutoFormat!
This will format things like colors. etc, but I think in order to have every form in a db "identical" i.e with headers, footers, title labels and so forth the same, the best thing is, as has already been suggested, making a form at the onset of development and then copying it and adapting it as necessary each time.