Who is Mickie G? And What's in her Little Red Wagon

I found the following poem that I would like to share:

Wagon, wagon
Little Red Wagon
What are you draggin'
In Your little red wagon?

Sure, this poem is for children, but it fits what I am trying to say. I put different stuff in my red wagon.

Right now, Squidoo is in my wagon.

In a few minutes, I will take it out and put in a book that needs to be repaired.

Later, that book goes on a shelf, and I will find that new book that I need to finish reading.

Quite often, there are one or more of my grandchildren hitching a ride.

What matters, is that it is MY wagon that I am filling and pulling around. I choose what goes in.

In one source, Dictionary of American Regional English, page 546, I found a lot of factual information about this phrase. For example, the phrase is most likely to be heard in the South Eastern USA. It can be used with a touch of meanness by saying ,"It's your little red wagon!" meaning "It's your problem!"

But I like the use of the phrase as meaning: "It is my affair," as in it only belongs to me.

A quite funny meaning of the phrase was found in Dictonary of the Amerian West page 221. In the west, miners used the term to mean "portable toilet".

Well, I guess to some nay sayers, my red wagon might be full of it!