Sleeping in own room

My fiance and I previously shared a room with our son since he was born. He had his own crib but sometimes we co-slept. Mainly he would start off in our bed or I rocked him, then I'd put him in his crib and the middle of the night he'd end up in ours. I know some people will not agree with that but it is what worked for our family. We now have a house where my son can have his own room. He is now 14 months old, so I know this will be a tough habit to break. Any tips on getting him to sleep in his crib in his own room? Possibly without having to do the CIO method.