Each dealer has a different way of working. Some of them just buy the bags from the sellers, pay them some amount on which they mutually settle, and then polish the bags a little bit, add price tags to it, and sell them as and when a new buyer comes to buy the bag. This they can do it by buying the bags both online, as well as at their physical shop, and the same happens for selling too. However, there are some other dealers who work a little differently. They do not pay the amount to the seller of the bag, until a new buyer pays the buying amount to the dealer, from which the dealer keeps his commission, and then passed on the rest of the amount to the previous owner. Both ways, you now know that in case you ever want to get rid of your old designer bags, you need not necessarily throw them away; you can simply sell them!
Designer second hand bags online can also be found at many other websites which are common shopping websites for a lot of products. You can create your own profile over there, and put the price and other details. At some websites, several new buyers will have to go through a bidding process to get the item that you are selling, and you can monitor this on your own by deciding which bidder you want to sell the bag to. Another option is to not go for the bidding option, and just wait till someone likes the price you are charging and is ready to buy your designer second hand bags. Once you start doing this a little more frequently, you will become a buyer and a seller in no time, with a fresh collection of bags with you all the time.