Fed made over $50k in 2 months by offering a lifetime deal for GummySearch. He priced the deal at 10x the monthly subscription price. He promoted the deal by contacting those who had asked for one, emailing trial users, leveraging his Twitter audience and participating in Facebook communities.
He shared what he learned at How I raised $50k from 234 customers via LTD sale. He also repurposed that post as a Twitter thread.