More than 160 million Americans garden, but few think of it as a means of doing anything other than killing time, diminishing stress, and bulking up the produce drawer. Still, the National Gardening Association suggests that a $70 vegetable planting can yield $530 of profits. You don't have to be a full-time farmer, to sell surplus vegetables and home-grown flowers at farmers markets, festivals, or even homemade roadside stands. The U.S. Department of Agriculture maintains a registry of farmers markets, while the Hobby Farms website offers tips on setting up a roadside produce stand.
Related: 22 Tips To Keep Gardening Dirt Cheap
If you're left with a surplus from an overzealous round of antiquing, chances are Etsy and eBay have already come in handy for making at least a tiny profit. If you prefer items that aren't at least 20 years old (Etsy's threshold for antiques), you could use your online ratings on Amazon, Yelp, and elsewhere to apply to mystery shopping gigs. Retailers will typically give between $10 and $20 an assignment, with a free meal or product discount often thrown in. Beware: This corner of the industry is riddled with scam listings.