You could end up riding the next wave of trendiness - next year's cilantro, she said, laughing. Then, go to markets. Also check on market regulations. Some limit or outright deny space to vendors of processed food, so your brilliant salad dressing or gourmet mustard is out. There may be regulations concerning who can work at your booth and whether you must accepting food stamps.
Some markets prohibit the use of shrink wrap.
Others don't allow vendors to hand out free samples. If markets in your area are too restrictive, consider setting up shop at a public market, where you pay your fee and can sell what you please. Corum, the farmer's market consultant, suggests also considering flea markets and the county fair circuit. Talk to market managers, check the range of products, check out how many vendors there are and how many people come. Also ask what the season is.