Answer:
I tell people to be careful when handling boxes.
I am the only thing that place today before yesterday. (one word)
I save lives on the ground and in the air. What am I?
I describe a toilet cleaner as well as one of Santa's reindeer
I cannot be felt seen or touched. Yet I can be found in everybody. My existence is always in debate. Yet I have my own style of music.
The answer I give is yes, but what I mean is no. What was the question?