I love it, great combinations are everywhere. I just mixed Honey Comb and Corn Pops for the first time and it's sex. Another notable mixture is Coco Puffs and Cinnamon Toast Crunch. What have you discovered?
I usually only mix when I run out of one type of cereal. However, since my most commonly consumed cereal is regular cheerios I can vouch that they don't interfere with other flavors and can be used to add texture (but not much taste) to almost any mix.
call me a pansy, but I like adding cheerios to honey nut or apple cinnamon cheerios to make the sweet ones last longer. plus, all the sugar in lucky charms and cinnamon toast crunch cant be healthy for you. sometimes I put all bran on top of my cereal, gives me good shits