That’s an impressively short list.
And I’m sure if you take the potato chip bag when there is only one chip left, you’ll be able to cross that one off your list.
For chewing gum and walking in a straight line:
Start off slow. Chew your gum once, then take a step, chew, step, chew, step. I can’t do it myself, but my wife is quite the multi-tasker.