Baby registry help!

Brit
My husband and I are registering for Buy Buy Baby and Target. My question is... Should I register for primarily the same stuff for both? I'm aware that where we live not everyone has access to Buy Buy Baby, but Target is easy to get to. My main concern are the strollers. I'm not concerned if we get doubles of stuff...cuz i can always return them. What have you guys done?? What's the etiquette?