What would you say is a seasoning/spice you use more than the vast majority of other people who often cook?
For me it's definitely chili flakes. I'm Estonian and it's not a commonly used spice - not all food stores sell it (ground chili is more common, but generally Estonian food isn't spicy at all - we might use very strong mustard and horseradish when eating pork, but not chili or hot sauces or other capsicum stuff) . I use it pretty much with everything - even like.. chicken soup or smt like that.