There is no formula or rubric for your independent posts aside from "try." Try to create something in line with your interests; try to create something interesting to your audience, and try to start before the guillotine of a deadline starts to crash down.
If you are totally lost for ideas, check out this post.
If you choose to stay lost, toughen up, for you are choosing a rocky trail though life.
I am doing my best to make your workload manageable, but it is up to you to make it memorable.