I agree with the above posts that to go commando means to go all out and not miss a beat. Generally those who go commando are planners to get the most out of every minute.
We are neither! We don't even know from day to day if we plan to visit a park or not. We NEVER make ADRs because we don't know where we'll be or if we'll be hungry at the right time. When we want to eat at a TS restaurant, we try to catch off hours or as soon as they open. We have only been turned away once in more than a dozen attempts.
There is nothing enjoyable about going commando for us! If we do decide to head to a park, we do get there at rope drop, hit a few things and are out of the park as the masses enter.