I'm starting a side hobby selling 3D printed things using Shopify, currently on the Basic plan. I'm based in the UK, and shipping in the UK is fine for me to calculate and have fixed rates for everything up to a medium parcel size. It's the rest of the world that's got me into a rabbit hole. I definitely cannot afford £344 a month for the higher Shopify plan to auto calculate this, and I've spent the last few hours trying to make a spreadsheet of the cost of everything from a small letter to a medium parcel (of differing weights) for each country that I plan to ship to... and now I've given up. What do other UK small businesses do for this? I've heard about ShipStation. Any thoughts/reviews on that? Thanks!