Organization is Key
Many of us have little ones at home or have grandchildren that love toys and stuffed animals. Those little ones often don't think about where they are putting their toys or how that could affect your home and its airflow. If a large stuffed animal or a toy is left in front of a vent it could easily disrupt the proper air flow to and from the air handler. The improper air flow can lead to a fire hazard if not taken care of in a timely manner.
Something that could help avoid this situation is better organization. If all of the cars they like to drive around and all of the stuffed animals have a place to call "home" it will help them to remember when they are done playing each day to return their toys to their proper parking spots or homes and keep your home a little more fire safe.