I mostly want to use Flat Rate Shipping, but some products cost way more to ship than others. Help me Obiwan?
Worry not my little plutocrat! Head on over to your Store>Settings>Shipping page, where you can set a base flat rate for local and international regions. Then, when you are entering your products, you will see the option to set an additional flat rates. If the flat rate fields on a product page is left empty, it will resort to the base flat rate. [Note: If all of your products are going to have different shipping rates, then just set the rate on each products page.