Learn then selling guidelines. Each marketplace has guidelines that define what you can and cannot sell. State and federal laws also impact what items are prohibited. In general, you cannot sell alcohol, weapons, service contracts, animals or event tickets. Also, while not always prohibited, you may find restrictions on how you can sell items in some categories, such as art, gift cards and coupons.[25] eBay, Craigslist and Amazon publish these guidelines on their websites.
Upwork: This website offers a great marketplace for selling just about any professional service. You don't need a merchant account, a website of your own or anything else for that matter. All you need to do is be able to provide a high-quality service at a reasonable price. But be informed, you will have to compete with many others that are constantly bidding on open jobs. 

When you sign up for Trim, they immediately begin analyzing your spending and look for ways to reduce it. They’ll call your internet service provider and negotiate you a better deal on the same service. Same for your cable package (or any other recurring service you have). They’ll also look for hidden or otherwise forgotten about subscriptions and cancel those if needed. Think of them as your bill guard dog. No one gets by without their permission.
Selling clothes you no longer wear is a quick way to make some money. Start with local consignment shops for faster cash, or use sites like ThredUp and Poshmark to find buyers. If you go the online route, be sure to take clear, well-lit photos of your pieces and research similar items to set competitive prices. Get tips on how to sell your clothing.
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