Here is a simple but effective and working eBay resell method that can make you some quick cash if you are savvy. You can earn some quick cash from this if you do it right. Yes I do it myself and have been doing it for years. Its known as "Rapid eBay Reselling" and hundreds of people do it all the time. A lot of auctions you see on eBay are not original auctions but are rehashed versions of someone else's auction at a higher price. Here is basically how it works.
1. Find a high selling product
2. List that product at higher value.
3. Sell product and collect money.
4. Buy product and get seller to send to buyers address or receive and then send.
5. Keep profit.
Rinse and repeat for different products.
Ideally, you will want to find a high selling product where the seller has many of them for sale.
Then you list that product more or less exactly the same but with a higher price.
Take an Xbox One for example. Some people are selling these for as low as £300.00. But some people are selling them for as high as £1000. (Thats £700 profit). Ideally you would list it at a more reasonable price though like £450. Thats still £150 profit.
You will have to get the money paid to you first. Then you will have to buy the actual item. Then you will have to have it sent on or send it yourself to the actual buyer. If the seller can send to a different address (most don't for security/fraud reasons) then you save on postage costs. Else you will have to receive the item yourself first and then send to the actual buyer using registered/recorded delivery. This is around £10 for an item as large as something like an Xbox.
Also you will want to make no promise of a quick delivery. Only that you will send it registered recorded signed for delivery. Which can take up to 5 working days anyway. So you will want to buy an item with express delivery. That way you can receive it in a couple days (fingers crossed) then send to the buyer and they will receive it before too long.
As long as they get it in about 10 days most people will be happy. It could be that maybe someone decides they don't want it and want a refund. (They have 14 days by law to do that). So you will have to refund them. But you'll need money in your Paypal account to cover this or you will have to get the item back from the buyer then send it back to the original seller for a refund which could take about another 2-5 days before you can even refund the buyer.
Provided everything goes smoothly though, the buyer will be happy. And you have your profit. There is the hassle of receiving and sending the item but sometimes, this is nothing when you are making a good profit. The trick is, to find a high selling product that you can duplicate and resell easily and quickly. And always be real genuine and legit. You don't have to tell people what you are doing, but you are not doing anything illegal anyway so long as you are sending the items to the buyer. And keep at it for long enough on many different items and not only can you earn a nice income while doing it but you'll be building up trust to your eBay account and get more sales and so on.
So there it is. I've said it outloud. The Rapid eBay Reselling nutshell guide. I may put together a much advanced version of it depending on how much demand there is for it. Let me know your thoughts.