First, 'rain cats and dogs' = "It's raining cats and dogs" it means that it rains a lot like pouring water in a bucket. Second, 'my two cents' it means in my opinion and my thought. Third, 'drop in the bucket' means a little thing. The last, 'None of your business.' or 'Get out of my shoes.' it means don't mind other people's business.

~~ Good job, Minah! ^^