We just rolled out the ability for premium users to create additional users to access their accounts. This has been a highly requested feature and is ideal for a couple who has joint bank accounts.
When you create a new user to access your account and they add transactions, their username is appended to the description of the transactions they add so you can easily see who has added what transactions. The main users name will not show up next to all the other transactions to make things easier to read.
To set up additional users for your account, you must be a premium member and then go to Settings and click on the "Additional Users for this Account" link. You enter a new username and password on this page to set up the new user.
All additional users will have the same permissions as the main user. This means they can add/edit/delete transactions, reminders, notes, gadgets, etc.