I read Babywise and it was a little rigid and harsh for my liking (so I follow its ideas, but loosely), but it really gave me some great ideas for routines and how to get my baby to sleep which made such a difference for us once we started implementing them. I would recommend reading it because of the great ideas it offers, and I've also heard the "No Cry Sleep Solution" is terrific.
DON'T nurse or hold your baby to sleep on a regular basis or else they won't learn to go to sleep on their own. Young babies should eat, have play/wake time, and then sleep in that order so they don't fall asleep on the breast and grow to depend on it. Babies should repeat this cycle about every 3-4 hours depending on how often they need to eat. It changes as they get older and start eating solids and nap less frequently. Babywise gives you an idea of when they'll eat/wake/sleep for the different stages of the first year. When they're real little their awake time won't be very long. Most importantly in this routine is making sure the baby doesn't fall asleep before it gets full because then they will be constantly hungry and you'll constantly be feeding the baby as they snack all day.
Bedtime routines are great. We change diaper, read a book, and sing a song before laying our baby down as our routine. As my son got older I added cleaning up toys at the very beginning of the routine. He's 2 and has been sleeping through the night since he was 4 months old (my doctor said that by that age he was waking up out of habit and not because he needed to eat). My 7-week old is practically sleeping through the night now (she fell into a routine much more naturally and with less work on our part than my son did. It took more effort to get him to sleep through the night, but it has been well worth it for him and for us). Getting her to fall asleep has been a little bit of a struggle, but it is getting much easier as we follow the same routine every time and just pat her and talk/sing to her when she's fussy instead of picking her up. She's learning to soothe herself and fall asleep on her own, so it's worth all the effort and energy.
Feeding/sleeping schedules also are nice because I know when I can run errands or make appointments because I have a rough idea of what time she'll need to eat.