I have 3 kids - 6 years old, 3 years old and a fresh one at 5 months. I would strongly recommend sleep training them from day one. My wife is a strong proponent of her own good night sleep and our kids were sleeping through the night at 5 weeks, 7 weeks and 8 weeks respectively. If you can get them sleeping, that is half the battle. After that, it becomes a scheduling issue but it is not that bad. My wife is a big fan of the book "On Becoming Baby Wise" but don't read too many books. Just use your best judgement.
You will also discover yourself doing things that you had never dreamed of - like a 3 year old yelling to you "Dad, come wipe my bum!" or calmly dealing with a child projectile vomiting and having a bowel movement at the same time. Children amplify the highs and lows of life. The smallest things they do become huge triumphs in your life (look! the baby smiled!). It is wonderful and I could not imagine it any other way.
You can still accomplish anything that you want to - my wife got tenure a week before our second child was born. I have started 3 companies while having kids. You get better at time management and it helps to have a little staff. We use a maid service and have a full-time nanny. The older kids now go to school and so we have a little structure (and I have the time between 8:30 and 11:30 in peace and quiet). You learn how to structure and delegate. You can't do it all yourself, so you have to figure out how to manage time and people. Once you get these skills, then you can actually get MORE done than you could before.
For anyone concerned about doing a startup and looking for a partner, have a look at the kid. They may not bring much in the way of technical expertise, but you will never ever want to let them down, no matter how rough the going gets. Each day when you get home and those bright eyes ask you "How was work today Daddy, what did you do?" you will find more accountability and support than you could ever believe. When they get a little older, you buy a Lego Mindstorms and start making projects that move and do things and this gets fun in new ways - teaching your kids to program/hack whatever. You can get them going on Python Turtle and watch their little minds expand once they realize that they are controlling the movements. And as someone else noted, you get a lot of baby-focused startup ideas.
You will also discover yourself doing things that you had never dreamed of - like a 3 year old yelling to you "Dad, come wipe my bum!" or calmly dealing with a child projectile vomiting and having a bowel movement at the same time. Children amplify the highs and lows of life. The smallest things they do become huge triumphs in your life (look! the baby smiled!). It is wonderful and I could not imagine it any other way.
You can still accomplish anything that you want to - my wife got tenure a week before our second child was born. I have started 3 companies while having kids. You get better at time management and it helps to have a little staff. We use a maid service and have a full-time nanny. The older kids now go to school and so we have a little structure (and I have the time between 8:30 and 11:30 in peace and quiet). You learn how to structure and delegate. You can't do it all yourself, so you have to figure out how to manage time and people. Once you get these skills, then you can actually get MORE done than you could before.
For anyone concerned about doing a startup and looking for a partner, have a look at the kid. They may not bring much in the way of technical expertise, but you will never ever want to let them down, no matter how rough the going gets. Each day when you get home and those bright eyes ask you "How was work today Daddy, what did you do?" you will find more accountability and support than you could ever believe. When they get a little older, you buy a Lego Mindstorms and start making projects that move and do things and this gets fun in new ways - teaching your kids to program/hack whatever. You can get them going on Python Turtle and watch their little minds expand once they realize that they are controlling the movements. And as someone else noted, you get a lot of baby-focused startup ideas.