as a daycare provider, I can tell you what I inform the parents of....I use a journal to tell them everything that the child ate, how much time they slept for and any other useful information....unusu al behavior (good or bad), firsts, cute/funny thing....my rule is anything that I would want to know as a parent goes in their journals. It is usually brief, though. Some things are better said in person, but I'm often afraid of forgetting during the short time that they're at the door. Especially if more than one arrive at the same time, or I'm otherwise distracted with other children.