The oven method for bacon is how the restaurants that I worked in - years ago - cooked their bacon.
Bacon grease on popcorn? - wow - my family is from Georgia and SC, and even we never did bacon grease on popcorn - sounds good! I think I was at least 15 years old before I realized why I didn't like eggs anywhere but home - my Dad (the breakfast cook) always cooked them in bacon grease.