There are a few ways to avoid PayPal fees when using eBay. The first is to use a credit card to pay for your items. This will generally avoid any PayPal fees, though there may be a transaction fee associated with using a credit card. Another option is to use a PayPal debit card.
This will also avoid any PayPal fees, but there may be a fee associated with using a PayPal debit card. The last option is to use cash. This will generally avoid any PayPal fees, but there may be a fee associated with using cash.