US to UK

I have a friend who is making a good amount of money shipping various items from the US to the UK.

Has anybody else worked this before - if so do you have tips on best products to sell for markup and delivery options?

Its abit tough to do this since USPS now charges a way higher price for international orders. But if you hit the right niche you could do good. Cheapest shipment would be doing it by ebay service they charge like 30% less than if you were to just go to the post office and send out the order

better getting products in europe where u can make 30-50 euro each