Being out numbered does make things that I had down pat with 2 seem much more complicated. My third "baby" just turned three years old and I am really just finding my groove when it comes to taking all three of them anywhere by myself.
Before I had kids I assumed, two kids was twice as much work and therefor three would be three times as much work. But the work definitely multiplies more than that with each child. For me #3 was also a little more complicated because my first 2 were just a year apart and baby #3 came 4 years later. While I was originally terrified by the prospect of having 2 babies in a year, it really worked out very well. They are always in the same, or at least similar stage of things (after the second became a toddler). This meant they did all the same things. When we went to the park, they were both able to do the same things. They were typically old enough for activities at the same time, or at least very close. But now the older boys are always doing something, sports or Scouts or something, and then there's Bryan who just has to tag along. Thankfully for us, he's a pretty good sport about it. But when he began showing interest in sports as a toddler, its hard to explain to him how many years he has to wait to do what his big brothers do. He has wanted to be a big boy forever and all but skipped any of the typical baby toys.
But he is the funniest three year old ever. He has a much more mature sense of humor than he should for his age. He is the light in my day most days and I wouldn't trade him for anything. Three kids is more work than I ever could have imagined but it is TOTALLY worth it.