I have a file box with an index card for each child in my class. I jot down comments and dates as incidents occur on the cards. When I write reports or have parent conferences, I can use the cards to substantiate what I'm saying. Another advantage to using the index cards is that I can be selective in what I choose to report to the parents so that I don't appear to be bombarding them with too much information. These cards are also very helpful when I'm organizing my thoughts for a report.