Are there other ways besides "cry-it-out" to sleep train my baby?

Quiet bedtime habits: From early on, parents should keep a consistent, unexciting bedtime routine so their baby gets sleepy instead of stimulated. From 3-4 months onward, after putting the baby down to sleep, parents should stay where the baby cannot see them, especially if their baby is a hard-to-fall-asleep baby. If the baby sees a parent, he'll want to eat or play. Haven't found anything better than "crying it out".

Yes!: But other ways take much longer and not as effective. The key is to teach your child over time that he/she does not need any specific "thing", like mom's breast, bottle, getting rocked, getting bounced and so on to fall asleep. You start but reducing night time feeding time starting after 2 month of age, to generally minimizing any simulations at night. You also have to be consistent!

Sleep consolidation : through self-regulation occurs between 1-4 mos. If you have consistent bedtime & routine ( rocking, reading, feeding, wiping out baby's mouth with a soft cloth after the last feed) & baby is put in his own bed in his own room, drowsy, but awake to self-calm for sleep, you'll avoid " developmental night-crying" at 6 mos. when habits (learned behaviors) begin. You can't do it for them.