Capture as much information as the customer may want to volunteer, but to keep the form easy, indicate the absolute minimum you need to carry out the transaction. Provide pop-up menus when they contribute to accuracy and speed. Use alpha, numerical, or some other logical order to aid scanning. New users may be unfamiliar with pop-up menus and will welcome brief instructions or reminders. Help prevent email address errors.
Customers don t always remember to write out their complete email addresses.
Divide an email address into two fields as a reminder. Give precise payment instructions. If you offer payment alternatives, put the preferred one first. Clearly point out and explain any options. Show snail mail addresses vertically for easy reading and transfer to an envelope.