The sequel to most things just isn't as good as the original. I'm not going to claim that the milk left over after a bowl of cereal is better than the main course, but it certainly is delicious. It ranges in quality - post-Cap'n Crunch milk - not that great… post-Honey Nut Cheerios - fabulous. Certain cereals rank higher for me personally on nothing but the milk. Next time you think about tossing that milk out - check to see if it might just be worth the extra slurp.
I used to dip 4-6 pieces of toast into my after-cereal milk. I really enjoyed it. I don't do it anymore, though. I just force my vitamins down now. It's a very useful part of the cereal consumption process.
I think a real key to this after-cereal milk is the kind of milk that you originally put on your cereal. Skim - don't waste my time. 1% - not too shabby. 2% - worth it. Whole - liquid love.