Today is Works for Me at Rocks in My Dryer. I would like to offer you something that worked for me when my children were school age.
I do not know about yours, but my kids were rather sloppy. They came in from school and set their coat, shoes, books etc all over the place. Then the toys came out and they were all over making it difficult to walk anywhere.
Time out, spanking, yelling, sending them to their rooms etc, nothing worked. I still ended up picking everything up.
My husband and I decided to try to teach them something about life and responsibility. I bought several baskets and when they would not clean up and I had to everything of theirs went into the baskets. Since my time is worth something and they were being irresponsible we would not let them just have their item back. They had to pay .25 a piece per item or do a job per item. In the beginning they thought we were going to give in, they grumbled because they needed that book for homework, or the jacket since it was chilly outside etc. I did not give in!
Soon there was not as much left lying around the floors, chairs, doors etc. It worked for me!