Objective: How to organize a suitcase.

Which of the following solutions is more sound in terms of naive physics reasoning?

Available options: - The suitcase ends up being mixed together after you use the clothes anyway so organization really isn't necessary.. - Separate undergarments from regular clothes and any electronic cables or devices. You can use a shirt as a separation point..
Separate undergarments from regular clothes and any electronic cables or devices. You can use a shirt as a separation point.