Toothpastes can be full of really nasty chemicals such as triclosan, sodium lauryl sulfate, parabens and preservatives. I love cinnamon tooth powder because it is so easy to make and it really leaves your mouth feeling fresh and clean.
Put in a jar with a lid and shake up.
To use, dampen your toothbrush with water then stick it in the jar to get a good coating. Clean your teeth thoroughly. Over time you will work out how much you like to use but usually a healthy covering of the brush will suffice.