You can sell items on Craigslist, just like classified ads in newspapers, for free — you don't even need a Craigslist account ...

You can print a shipping label on eBay and send out items you've sold via standard USPS mail, or through FedEx and UPS.

Here's how we make some extra spending money as casual sellers. What are your favorite tips and tricks? Edit: Listing your items at 99 cents saves you the listing fee, not commission :) *I am not ...