I describe a toilet cleaner as well as one of Santa’s reindeer. What am I?

Answer: Comet

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More What am I ?

I destroy your home from inside out. What am I?
I dig out tiny caves, and store gold and silver in them. I also build bridges of silver and make crowns of gold. Sooner or later everybody needs my help, yet many people afraid to let me help them. What am I?
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I do not contain flesh, feather, or scales; yet I have fingers and thumbs. What am I?
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I don’t speak but there is no word I cannot make. What am I?
I drape the hills in white. I do not swallow, but I sure do bite. What am I?
I drift forever with the current and flows to your everyday life. I make living easy but I am good at killing people too. What am I?