Catlady, my reading habits are subject to circumstances, mood and availability of spare time.
For instance, I have a 'worthless' (Russel Brand) autobiography currently loaded on my phone so that I can quickly dip in whilst waiting for clients in reception areas without looking as if I'm just reading a book. I also have an audiobook on my phone, 'just in case'.
In my car I have two audio books queued up, one for the 30 minute daily commute, the second unabridged reading of a second book that I can immerse myself in on the longer longer drives I undertake each week.
My main reader, again can have up to three books in use, one technical manual (we won't call that reading though, its more of a reference) and one book that I can sit back and relax with. Another book will be there for when I can 'kick back' and relax at my leisure, hopefully free of all interruptions.