I never shop at home, just get a delivery. However I love browsing supermarkets abroad. I love the huge jars of chickpeas and lentils in France and Spain. I also love that you can buy remoulade in France. And picnic wine 
I bought some lovely bottles of rose in holland with stopper, like a grolsch bottle. And the cheese . Everything in holland looks so effortlessly fresh and healthy.
I bought the most gorgeous oregano in Zante last year which is about to run out so thinking about booking a holiday only half joking and olive oil.
Can't think of anything else, so do you love a foreign supermarket, and what have been your best buys?
Ps I sometimes go to Lidl and pretend to be on holiday 😎