On Thursday, online auction marketplace eBay launched a new product called “My Gadgets” that it says will let users catalog the tech devices they have and appraise them should they wish to sell any later. It will take all your iOS, Android, PC, game consoles, stereos, mobile phones, televisions, and more and curate them in a single place so should you decide to take the plunge and purge your home of your electronic possessions, you’ll know what you could expect to receive. Creating your own collection is simple. Go to the “My Gadgets” URL and authenticate using your eBay credentials. After that, simply enter in the item you wish to add. As you begin typing, the service will show you a list of products that you might be talking about. We ran a query for “iPhone 4S” and received multiple listings back that best fit our item.