Organizing what you already have on hand can also be very empowering when you realize that you are more prepared than you thought.
What a great thought: Simple, direct, and very manageable. Just the fact you slow down enough to do this is a move in the right direction.
Honestly, I have a hard time knowing what I need to get when I go "major" grocery shopping. This step alone needs to be integrated.
Make a plan, make a plan, make a plan.....
Again, great thought.