The most important thing to leave is the child's insurance card. Not having that can be a real pain and they may have to pay out of pocket for services.We could get it in writing that our parents had consent to make medical decisions for Booboo while we were out of town. It is a good idea to leave a permission note for the kids for things like taking them to the dr for an ear infection. Everything you need to write a declaration letter to the judge in your custody case: an example, a downloadable template, an outline and tips. Clearly state who is authorizing the caregiver to take care of the child. Sample Child Travel Consent Letter Thumbnail. Sample. After serving, the server must fill out a Proof of. Leaving your child with a trusted adult isn't easy. Travel consent form.