I took these pictures last night over at a friend's house. I love her calendar which she got for free at a local teachers' supply store. Using different colored markers is a great idea. Each person can have their own color or you can just work out a system that suits you. Posting the kids's artwork to cover the door to the laundry room was another great idea. On the doors leading to her back porch, the kids are allowed to draw with a type of chalk/crayon that wipes off easily with a bit of glass cleaner. She says it can keep her three little ones occupied for a very long time. I love going into people's homes and discovering new ideas!