I started free shipping in my shop and offer 5% discount on orders for more than one item in order to balance out shipping overage. For local customer it is still not enough. In some cases, they are charged $5 - $10 more than it actually costs because of combined free shipping items. Shopify does not allow additional discount when I have already automatic discount. If I use coupon instead of automatic discount, some customers may forget to use it. If I want to set up special discount specifically for my local customers, I need to use app but it costs monthly. I am not sure if it's worth it. Do I sound ridiculously conscientious? Our local customers have to pay tax as well, so I do not feel good about shipping overage. I would like to know how other vendors handle this issue.