1. Accept the order from your customer.
2. Tell your customer that you will email her an invoice so that she can pay through Google Checkout. Ask her for her most reliable email address.
3. Verify your customer's email address and make sure that it is spelled correctly.
4. Go to Google Checkout and log in to your account as you normally do.
5. Select 'Tools,' then 'Send an Invoice.'
6. Enter the pertinent information: your customer's email address, the amount, what the payment is for and perhaps a personal message to your customer.
7. Send the email invoice to your customer. She can then complete the checkout process so that you can get your funds.
8. Check with your customer to make sure that she received the invoice. If she did not receive the invoice, ask her to check her spam or junk mail folder.