I read the book On Becoming Babywise about eating and sleeping schedules and it's a big proponent of schedules. It is a little rigid 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 didn't like completely letting my kids cry and cry it out like the book recommends. I would recommend reading it (take what you like and discard the rest) because of the great ideas it offers, and I've also heard the "No Cry Sleep Solution" is terrific. Babywise gives you an idea of when they'll eat/wake/sleep for the different stages of the first year, and I really like that part of the book.
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. Kids thrive off of consistency, and knowing what to expect next gives them security. I personally like a schedule because I plan outings around it and have a pretty good idea when my kids will be well-rested and fed, so they won't be grumpy.
Getting my baby to fall asleep was a little bit of a struggle, but it became much easier as we followed the same routine every time and just pat her and talk/sing to her when she's fussy instead of picking her up. She learned to soothe herself and fall asleep on her own, so it's worth all the effort and energy.