Don't think there's a thread like this:
I've got one or two easy little things I like to suggest to people, things that can enhance a meal without hassle or grand expense. Anyone else?
Instead of butter, use mayonnaise on the outside of a grilled cheese sandwich. It cooks beautifully, gets crispy without burning, and tastes like it was made at the perfect diner. This is somwhat uncommon, some people balk at the idea, but you ought to try it before you say boo.
Sprinkle cinnamon on top of macaroni and cheese. This stems from my childhood, I enjoyed having homemade applesauce and Kraft Mac&C for dinner. The cinnamon doesn't replace mom's homemade applesauce, but it is a whole lot easier!
(You'll note, I'm not exactly a "classy" eater sometimes.)