What to include in Baby Registry??

My SIL is pregnant with her first child (a baby girl)and has asked me for help with her registry...she is expecting 100 + guests at her shower. Ladies can you help me out?? What things did you put on your registries, what things do you wish you recieved? What are items that are must haves for new babies and new Mommy's? Thank you for helping  

books!....no one EVER gives books....anything from dr. seuss to the fabric kind....i asked everyone to bring their favorite book from childhood as a gift.....it was awesome!

I put everything I thought I might want or need.  In my opinion you can never put to much stuff on a registry because people are going to pick and buy what they want to get you.  If its not on the registry then people won't get it.... GO CRAZY AND PUT EVERYTHING... you can always take stuff back and exchange it.    

All the big baby registry stores have very detailed lists (walmart, babiesrus, target, ect) You should print off a list from one of their websites for her. It is very helpful. They included a lot of things that I over-looked.