Just an FYI for future consideration to anyone shipping from Canada to USA. US Customs allows any single shipment as a federal exemption if value is under $800 to any US Citizen. Once the value exceeds $800 USD, they assess a commercial value against the order just like a duty charge we get in Canada. The carriers (especially UPS) then assess their own brokerage fee on top of that and the buyer on the US side gets that surprise bill from the carrier including any commercial charge assessed by US Customs.
It all adds up. Just sharing some info. Not trying to stir any pots.