contra you ave to do what suits you. I like routine so it figures really. However all of mine have slept through, dream feed aside at 8,9,10 and 8 weeks respectively.
A common complaint is that people say you are a save to the routine, you can't go out. Granted if you are going to do it it is best to stay at home a week to get in in place, but thereafter I feel more flexible. I know what I need to take with me because I know when he will feed, I can plan stuff for over the big lunchtime sleep, I get everywhere on time because I know what is happening and I get no surprises, in the main.
As I said there is advice for what to do if it goes wrong, eg at the mo Oliver will not sleep a two hour stretch at lunch time for some reason if we are at home, so on those days, like now, I get him up, let him okay, he has his milk at two then gets back down for a bit afterwards. He can then get through till 6:45 ish.
I have to say after having four you don't have all the answers as they are all different but with each one you just get a bit more confident about trying different stuff. And you know they all grow up in the end.
And leave home. 