"Shipping" is auto-calculated and is often mis-calculated via the built-in website mechanics. Always remember there are real costs involved in the "Handling" portion too, so even when your stuff will fit in a $7 flat rate box the shipping total is designed to pay for bubblewrap and Human employee costs.
If it seems crazy, fill your cart and don't complete Checkout, then negotiate with the Vendor for a more realistic/accurate Shipping figure, you might be surprised ...but at the same time if everyone did that, we just added another person to the payroll ...the Shipping Negotiator, and we just slowed down the whole Shipping process company-wide.
Shipping also gets pretty high when shipping Coast to Coast ...it can triple. You can estimate actual shipping on the USPS website by checking what it would cost to ship something from your house to that company, but again remember all companies need to factor in a small degree of profit in that actual shipping cost in order to not lose money. There's really no such thing as "Free Shipping" and Amazon has dominated the Marketplace with this little feelgood ...trust me you're paying for shipping in the price. Heh still gets me tho
This thread was good for letting people know that 48mg Nic is not considered Hazmat.