Preemptively pausing the book when my work requires full attention works for me. I also use the 30 second replay feature on the iPhone. Maybe the most important thing is to pick the right book type. I find historical non-fiction is great for me because I often already know a bit about the subject so I can listen and just grab some random facts or stories without being concerned about every detail. I rarely multi-task with complex fiction. I feel like I'm missing too much.