As mentioned in the previous article about creating your account, you log in and out in the same place. Once you log in, the same tab will now say "Your Account" click on that to being up other tabs to use.
This is where you can click and edit your account, access your list, checkout previous items you ordered that are listed in your favorites and edit your saved payment information id needed.
You will also notice that anything that you left in your basket will still be there and you can add, delete or finish your checkout at this time.