What is a brain dump?
A brain dump is when you transfer everything from your head onto a piece of paper. It can be anything: tasks, the news, questions you have, etc.
Why brain dump?
The point of a brain dump, really, is to free up space. When thoughts build up it can become overwhelming, so free up space by writing it all down.
Next, it's time to organize.
First, you create your four buckets. Make four buckets differentiating the importance and urgency of each bullet on your list.
Go in with a highlighter and color-coordinate some categories.
Once things are bucketed off, go in with some colored highlighters and break down the lists even further. It might change with every brain dump, since what's weighing on your mind might be different every time!
Get realistic about the things that ARE handleable, and write down the next step accordingly.
For example, if "clean the house" is on your list, write down what needs to be done.