Most POS systems treat customers and charge accounts as the same thing - the customer is effectively the account and the account is the customer.
FloristWare is much more sophisticated. Customers are customers - people who buy from you, people who have their own unique spending patterns, habits, preferences, recipients, etc. To serve them best we want to keep track of each one separately.
Accounts are different - accounts are just a method of payment and we treat them as such.
This means that FloristWare allows multiple customers (each with their own unique customer record) to charge to the same account. It also means that each customer can charge sales to multiple accounts.
It seems simple but most systems can't do it. You'll quickly see that it is a very powerful feature that gives you, your customers and your accounts a lot of options.

