Efficient Shipping
Efficient Shipping Hey all, my new business ships small vitamin sachets, they are 3x4 inch flat packets each, and i want to put these in something small and economical via USPS (because its close to my home). Id just be shipping around 3-5 packets in one box/mailer at a time max. What's the most economical size dimension mailer? I was thinking a bubble mailer, but...