If you subscribe PayPal email, you may find this offer from PayPal in your email box. You can earn $5 credit from PayPal if you link your bank account to your PayPal account before Jun 30. Of course, every time you pay with PayPal, you can still choose which funding source you want. I think it is best for PayPal that you pay everything through your bank account linked in PayPal. I still prefer paying by credit cards to earn the points.
