Having kids emphasized what I already learned in the food industry, don't do silly extraneous tasks ever, and do things as fast as possible without compromising what I do. I rarely wait and do one thing at a time when I'm trying to get stuff done. For example, I'm normally cooking one meal and prepping the kids lunch at the same time.
Unless I absolutely need a break, I don't watch T.V. idly. It maybe in the background, but I'm normally only half paying attention. I turn on CC so I can read the text, and half listen. Watch videos to learn something? You can read (I've heard 4 times) faster than watching a video, so I almost always take that route. The one thing I don't do is listen to podcasts in the car. That is reserved for NPR to catch up on world news.
Most of the time when people want to meet dealing with business, I demand an agenda, then I decide if it's worth it. I've been known to be ruthless at work with this. I focus my life around things like this.