If I were Josie, I'd just unsubscribe from any service and unDRM any content I own*, and then just continue as normal, with two exceptions:
1. Only buy things you'll probably not return. If you might require a return, buy items at different stores if at all possible.
2. At once UnDRM any content you buy, and if you can't, don't buy it.
That way, you will always be independent of the seller. Hey... wait. That's already my own modus operandi
The big catch is that you can't use any services and then depend on them.
(* I would go as far as re-recording audiobooks using the mentioned Virtual Audio Cable if need be, though I have also found software that can remove the Audible DRM and convert to MP3 in one go. Find and use this at your own risk. I have not downloaded or tested anything, as I don't do audiobooks.)