A shipping template saves you real time
Rather than setting shipping per product, building templates for groups of products with similar shipping characteristics means you can update your whole policy in one place later instead of product by product.
If you haven't opened your store yet
Shipping policy is normally set up during product listing, right after your store itself is created, so if you have not opened a store yet, get that set up first before configuring shipping.
Frequently Asked Questions
Is free shipping always the better choice?
Not necessarily. Free shipping usually means the cost is folded into the product price, so whether it works for you depends on your margin structure. Compare against competing listings and your own margin before deciding.
How does combined shipping actually work?
When you group your own products into the same combined-shipping group, a buyer who orders multiple items from that group in one order is only charged shipping once instead of per item.