Is it better to print shipping label off ebay or just go to post office?

• print first class postage online
• ups shipping label
• ebay selling tools
• biology class online

1st time selling on ebay. Does it cost me more to just go to the post office myself and make the shipping label there or is it the same price to print off ebay?


Thanks.

Is it better to print shipping label off ebay or just go to post office?