Strategies like paid surveys, focus groups, product testing, and research studies can help earn extra income. One can register with survey sites, qualify for high-paying surveys, participate in local focus groups, test new products, concepts or join clinical research studies. Tips include maximizing time, accumulating rewards, varying demographic information, and providing quality feedback. With a consistent schedule of 3-5 surveys/studies a week, one can realistically earn $500-$1,000/month.
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