Swap.com. Like ThredUp, it's an online consignment store. You send in used clothes (women, kids, men's) and kids toys and games, and Swap will sell them for you. Hopefully. They may reject them, in which case you'll either have to pay a fee to get your things back or donate them. But assuming you're sending in clothes and toys that people will want to buy, your odds of selling them should be good. The website says that "sellers, on average, earn about $150 per box they sell on Swap.com when sending in-season, high-quality items." Especially note the words, "high-quality."
That may be fine for other businesses, but my business is different. This is a dangerous line of thinking that holds people back, and it is something that I hear all the time. The fact is that all websites should be able to turn a profit for their owner. This doesn’t just apply to e-commerce websites; this applies equally well to websites for traditional businesses and even non-profits. Although the application of them may be different, the principles are all the same.
The money is most certainly in the list. If you're at all interested in online marketing, setup email software and create a lead magnet that you can use in your sales funnel. Then, build up that list. It's often said that you can expect to earn about $1 per subscriber per month. If you have a list of 10,000 subscribers, that means you can earn roughly around $10,000 per month. You will need to deliver value and not pitch them on every email, but it is a very achievable goal in a short period.
TaskRabbit. Are you willing to get your hands dirty? (Nothing shifty … we're talking, like, weeding somebody's garden.) People come to this site to find those willing to do various tasks for them, such as putting together a bookcase or running an errand for them. Do as many tasks as you want, and this could become quite the part-time (or full-time) job.
Whether you have a website or are still dreaming up ideas for a blog, you can also look into affiliate marketing. With affiliate marketing, you partner with brands and businesses within the content of your website. If you mention a product or service, you link to that produce or service using a unique affiliate code you received when you signed up for that particular affiliate program. From there, you’ll make money any time someone buys a product or service through your link.