Yeah, in Spain sliced bread is not very popular either. Some people use it for breakfast toast. And it is used to make sandwiches. Curiously, we use the word "s

Yeah, in Spain sliced bread is not very popular either. Some people use it for breakfast toast. And it is used to make sandwiches. Curiously, we use the word "sandwich" for a sandwich made with sliced bread, and the Spanish word "bocadillo" for a sandwich made with traditional bread. Bocadillos are widely considered superior, with sandwiches used for a cheaper, quick snack, or for easier portability. No one would make a sandwich with things that are appreciated and considered good food (like serrano ham, tomato with olive oil, tortilla, a good cheese, or calamari), they make bocadillos with that. Sandwiches are universally for cheap sliced cheese and cheap ham. In summary, the phrase "the best thing since sliced bread" sounds very awkward in Spain because sliced bread is not associated with something good. It's associated with something quick that can do if you're in a hurry or if there's nothing better. Kind of as if we said "the best thing since Perl scripts" :)