22Jan FlyingCart
This is fantastic start for having your own online store for free. This is very simple to use and powerful. I set up a store in 20 minutes. The free version allows up to 5 items and you can make one sale. Then they have a paid for $14.99 per month fee and you get to list 50 items. Or pay $30 per month and get unlimited listings. Both get unlimited transactions.
They have many SEO tools built in. This is a good way to test out your products
check out the samples store