Paypal is rapidly becoming a standard way of making payment for goods or services on the internet.
It can also be used for someone to transfer funds to someone else.
The most well know company that uses Paypal to pay for goods is Ebay.
All you need to do is go on to the Paypal website
www.paypal.com and register your e mail address and give a debit/credit card number.
Then customers who also have a Paypal account can pay directly to your paypal account. It's done using e mail addresses. Then when your Paypal account has millions in it, you can transfer it to your bank.
We have 5 customers who pay by Paypal and so far, it's worked fine. I always ask the customer to add their address when paying so as I know which address it is from.
The only drawbacks are you don't have usuable cash untill you transfer the money to your bank account which although it is easy to do, it takes 7 days (I think) and also Paypal charge a 5% approx commission.
Cheers