There are so much things to learn from selling online like dealing with your clients. Not all of them like your items and they may say bad comments about your shop but that's okay because no one will believe them if you have a very succesfull shop.
Many are shifting to online store because they don't have to pay for rental fees, water and electricity bills. One can open a shop on different social networking sites and add as many friends as they want. Sit back, upload some photos of the item you sell, tag them if it's applicable and wait for them to buy. They can pay easily on your desired payment option or do meet-ups if the seller is available.
Couple and funny statement shirts are some of the items that are very popular and don't go out of fashion. Customize your own shirt. Let your clients choose the best design they want just like dexter t shirts. They offer a wide variety of designs that you can choose from.
It is very important to know what's new in the market place so people will keep on visiting your shop. Always answer costumer's inquiries as soon as possible. Even if they don't see the seller, buyers may know if the seller is irritated or what.