Understanding Shipping
 

I have browsed around some and just wondering how is the best way to calculate shipping for a quote when I post diapers? Should I just sell lots that can fit in flat rate things? Or how do you make sure you're not going to spend all your diaper $ on shipping?
TIA!

I have a scale and go to the usps site and use their shipping calculator (just add a zip from another state). I factor that price as well as paypal fees into my price. I learned the hard way when I started and ended up giving stuff away.