How to get the cheapest shipping?
How to get the cheapest shipping? I am selling my product on Shopify and TikTok Shop and use USPS ground advantage to ship each order. It costs around $4 a label and it really eats into my margins. I tried using PirateShip and Shipcenter for cheaper rates but it’s not much better. I also looked at USPS stamps but it doesn’t come with any parcel tracking. Does anyone here know th...