PUPPY!!!!

So we are getting married and one of the things we really want to have in our home is a dog. However there is some debate between Brad and myself as to what kind of dog we should get. Though this for us is still a few months off, we are starting to do the research into what kind of dog we want. Since Brad will have to work a lot of nights being a police officer he wants us to have a dog who will be a companion for me as well as an alarm system. I however want something fluffy that i can carry around in my purse lol. To me its all about poop.......do i want to shovel horse size poop or pellets? lol Thoughts?