Hold a yard sale to earn money fast and get rid of things you no longer need or use. Advertise in the classified section of your newspaper and also place signs around your neighborhood. Clearly mark prices on all items and offer to haggle or bargain with customers. Draw even more people to your sale by giving them examples of what you're offering, such as electronics or baby clothes.
One of the most underrated freelancing sites ever. The site started as a place where you could get paid to do short tasks for just five bucks. Over the years, it has slowly morphed into one of the biggest gig/freelancing sites where you can now charge any amount to do all kinds of stuff for other peoples. Anything from serious stuff like copywriting, translation, voice over social media management to silly stuff like prank calls and everything in between.