I wrote a previous article about how to ship orders in paypal but here is another one by Eric Terry from Linty Fresh. He uses endicia which is free for the first 30 days and $9.95 a month for the standard plan. One plus to this method is that you can pay for first class international shipping which you don’t have the option to do in paypal shipping center.
Shopify is perfect for beginners and experts. You don't need to have any technical or design experience to easily create a beautiful online store with your branding. Choose from tons of well designed e-commerce templates that look great on desktops, phones, and tablets. Easily customize, create pages, add products, and you're pretty much ready to accept payments. Plans come with a free no risk 30 day trial period.
Check out our in depth review of Shopify here and see why Shopify is our number 1 recommended shop for clothing companies.