This is good stuff. Probably the best idea is to spy on the competition and see what is already selling, and selling well.

A lot of people make the big mistake of creating their product first before finding a market that will buy it. And it just collects dust.

Another good tip is to just get a MVP out. A "minimum viable product" or basically a prototype without the bells and whistles.

When you sell it, your ask your customers what THEY think. After all, they're the ones paying for it!

Thanks for the blog post!

Marc