I have not really done much business over the internet. I pretty much am more of a customer than a merchant, and I have very little experience with being a merchant on the internet. My oldest daughter does steady swaps and trades on a different type of forum, and she told me something important. If you decide to sell something on the internet, make sure that you get the payment first. Even if someone seems very nice, it is better to be cautious.
For those of you who have experience, it may be common knowledge, but not to someone like me. I think that I may have been too trusting. I hope that I am wrong. Please look out for yourself better than I did.