Originally Posted by covfam
... why not you and your wife share the same account?
The main reason is that I use a US account (registered with Amazon.com), which I mainly use for work. The books and journals that I buy for my Kindle are often unavailable in the UK.
Conversely, my wife can't use my US account because she doesn't have a credit card registered to a US address, so she might be stymied by geographical restrictions. That's why she has a UK account (with Amazon.co.uk).
This has never been a problem with our physical Kindles. It's only because we both would like to access our books on a PC (for different reasons) that the problem has arisen.
Thanks anyway for the suggestion.