Having just come back to the US from Europe, I immediately miss nutriscore on groceries. A to E letter grades for the purpose of comparing two similar products to tell which are higher in sugar/salts/saturated fatty acids and which have more protein/fiber/fruits/vegetables/healthy oils. It was so nice picking up, say, two boxes of cereal and going “oh. This one is full of garbage and this one isn’t.” Not a perfect system, but a very valuable one