However, my profit margin is only around $2.50 per item after I account for the shipping costs. I managed to reduce my packaging costs drastically by buying bubble wraps in bulk from ebay rather than from the post office.
However, shipping cost using the cheapest option at USPS is still around $2.70 per package (1 item). is there any way to save on this? I keep hearing about stamps.com, but never used them.
I assumed that USPS is cheaper than UPS or Fedex for small bubble wrap enclosed packages so did not try to check those two.