I agree, three is the worst, and after five, the additional ones don't seem like much more work. It's like cats, I guess ... once you hit the Critical Mass, you can add more indefinitely.
That's right, because after the first three or four, #1 is big enough to be a help, even if all they can do is bring more diapers or the baby wipes. When I tell people I have six, I swear that what they hear is I've got six toddlers!
And when one has more than two, they have to learn to be obedient because you don't have enough hands to keep more than two under control at one time. It cracks me up when people tell me how well behaved my kids are, like it is something kids are born doing; I have worked hard to get them to that point!
LOL