I don't use toothpaste either from last 4 months and it's been great.
I only use a regular toothbrush and water to clean my teeth. It only takes a little bit more time to get them completely cleaned, since I have to brush very good every tooth until I feel it is soft and cleaned but I assure that toothpaste is not necessary at all. I've never had bad breathe again since I stopped using toothpaste.
Some days, when I feel my teeth are becoming dirtier very quick, I put some baking soda on the toothbrush and brush with it. I do this once a week or so, that's enough for me.
I hope this helps someone. Feel free to ask me any question.