We are just about to do the same with our daughter. When we did this with our son at almost 2, we did the following and it work remarkable well:
- explain what you are doing-- bottles are for little babies. Big girls drink from cups and don't need their bottle at night. But you can have your blankies, dollies, mommy will rub your back and give you kisses.
- give lots of love and keep the other bedtime rituals-- if you read three books, pre-bed bath, rocking -- keep doing those things.
- start omitting the least-favorite bottle first. For us, we started going without the nap bottle (there was less fight) and when our son was used to that, moved on to the nighttime bottle.
- give her a sippy cup of milk before bed. She'll have the same full belly but disassociate it with drinking in bed.
- you can even make a big thing of taking her to the store and letting her pick out her own sippy cups or cups with straws.
- if she does want a bottle to suck on, give her a small bottle of water. They are usually not that interested in that and easy to give it up.
Good luck to you! We are with you!