We've been co-sleeping with my 1-year-old ever since she was born. We want to transition her to her crib now. Any tips?

Here's a helpful article about your concern. Just to give you a gist, it helps if you do it in stages. Start with naps then nighttime sleeps afterwards. It will be helpful, too, if you keep a sleeping routine and stick with it. http://www.whattoexpect.com/toddler/ask-heidi/quitting-co-sleeping.aspx

I recommend putting her down for a nap in the crib during afternoons. This way, she won't be overwhelmed when it's time to transfer her there at night. Keeping the crib close to your bed also helps so you can easily get up and soothe her should she start crying.