It's a lot of work, but I've found that at least our son is actually quite reasonable. Only now is he starting to challenge us when he wants to see more tv than we think is good for him, or is playing with something he really enjoys but has to go to bed, or if you lead him to expect one thing he likes to do but then you don't follow up on that but do something else instead. But on the other hand you can really leave him to play by himself now (just turned three little over a month ago), he can already make quite impressively large wooden train tracks and such. He also goes to sleep during the day when he's tired (doesn't always need his nap now), just makes a nest behind two pillows behind the couch.
Really cute. He also loves musical instruments, especially drums (easiest for kids) and piano.
Just after birth, your life is going to be a lot easier if you learn to recognise the basics. Hand to ear means tired, red face means too warm or tired (usually the latter), type 1 crying that starts like a complaining sound is hunger or thirst, and unexplainable / type 2 crying usually means stomach cramps - up to birth his intestines haven't had anything to do, and starting them up is really painful. Warm hand or something else - your shoulder, your beer belly, or breast if you're buff
- on stomach helps, especially in the beginning you can feel the bowel movement. If you've eliminated all other problems as a cause, you can also help him sleep by simulating as if he was in your wife's stomach and she's walking around, as they've learnt to be active when the mother isn't and vice versa.
Finally, make sure that one of you always gets enough sleep, even if this means sleeping in separate rooms, shifts, etc. Your life will be hell if you're both tired. If just one of you is tired and reaching his/her limit, then if the other is fit you can go to sleep. If you(r wife) breast-feed(s), then work towards getting a surplus and store some in the freezer so you can make that while she sleeps a little bit longer.
These I've found are the most important things to get through the first year ...
/off-topic