Hi I'm Nyx2011 and I'm wondering what the best way to earn btc is at the moment? Are physical goods better to deal in than digital? What are the advantages of using bitcoin in my shops?
Since the first portion of your message is a bit unclear. In the case where you're not specifically wondering how to accept Bitcoin when you sell any kind of goods, give us more information on what you're able to do. (Mine, trade, etc)
If you sell goods and you are already receiving $ for it, then you can simply add a BTC payment process that will let people buy your goods with BTC and you will receive payment in USD if you so wish. Its not any different than just buying BTC if you are already earning $ from your shops.
If you decide to accept BTC directly, then make sure to wait for 1 confirmation before sending the goods, or 3 to 6 if they are very valuable.