Preshit Deorukhkar:

SellAFile involves no registration or set up. It just makes you connect with your Stripe account via OAuth, specify the details of your file that you want to sell and its price and you’re all set. SellAFile gives you a unique URL that you can share with your followers. Anyone who wishes to purchase the file can click to buy, enter his CC details and be done with it. An email is also sent to him. It’s really simple.

Very cool.