Be sure the costume fits properly. Pay special attention to the length to prevent a child from tripping. Costume material should be fire retardant. Face paint is preferable to a mask. Masks often interfere with a child's vision. Children in dark costumes should add reflector tape or some kind of lighter material that will be visible to passing cars. The treat bag should be sturdy. A broken bag that is spilling candy can divert a child's attention from traffic and other dangers. If possible, a white bag with reflective tape should be used. 

Young children should always go trick-or-treating with an adult.

Children should accept candy only from the doorway.

They should never enter a home.

When walking from house to house, they should be especially careful when crossing behind parked cars.

Children should carry a flashlight.

Streets should be crossed only at corners or crosswalks.

Children should not touch dogs or other pets that may bite. 

Use the buddy system. Never trick-or-treat alone.

Tell parents of a planned route and stick to it.

Plan Halloween activities in familiar areas.

Be cautious of strangers, especially of those in cars.

Never enter a stranger's home to receive treats.

Stop only at homes that have outside lights on.

Walk. Don't run, skateboard, rollerblade or ride bikes.

Carry a flashlight and wear clothing that reflects light.

Walk on sidewalks and driveways. Stay off lawns.

Be careful of open flames (lit jack-o-lanterns, etc.).

Wear flame retardant clothing.

Leave the little kids alone.

Don't try to scare them or push them out of the way. 

Parents should inspect all candy their children receive. Never allow your child to eat unwrapped candy. Always slice fruit thoroughly before allowing a child to eat it. Teach your children to display good manners. Children who show appreciation are appreciated. 

Above all, take care and have fun

and don't forget the chip for the camera!