What wonderful advice, I wish I had read and understood that with my first two. It was very much trial and error, poor kids. :lol:
I've found toddlers don't really understand "pops" as a discipline method, they're having a great time and along comes mad Mama with a "pop," and now they are sad. What I did discover, though, is if I am overwhelmed and frustrated to the point of "popping," it's better for everyone involved if I take a Mama time-out, even if that means putting an unhappy kid in a Pack-n-Play for a few minutes while I take a breather.
Good luck! The toddler years are so much fun but so challenging!