What is your reaction to the "toolbox" idea?

I think that the toolbox idea is a good way to encourage people to develop their writing skills. The more writing skills you collect, the bigger your toolbox will be. Then when we are faced with writing assignments, such as an SAT essay in 25 minutes, then we will be able to complete this assignment with no issue. This is just another mental trick to lessen the tension when writing essays. I think we all have similar minds like the toolbox. We judge things by levels of difficulty, while the toolbox has different layers. While the toolbox has the the more intense tools on the bottom layer, we have more intense writing skills the higher the difficulty level is. We have been collecting and using our "tools" our whole life and we don't even realize it most of the time.