Gumroad lets you create simple payment pages to sell pretty much anything online - but it’s especially built for nontechnical people. I’m a fan of Gumroad - I think their pricing is a little unfair, but for early-stage prototyping, they’re a beautiful tool. There are plenty of other payment tools you can move to later on, like Stripe, but if you’re building a little test store, I personally always use Gumroad.

Payhip is another great tool, with the only downside being slightly less cute design. The transaction fee is half that of Gumroad, and it's got just as much functional tools to help you sell.

Gumroad is still a great tool - but check out Payhip if the transaction fees are too high for you.