Take a piece of the inside of a banana peel and gently rub around on your teeth for about 2 minutes. The amazing minerals in the peel like potassium, magnesium and manganese absorb into your teeth and whiten them.
Pele de Bebê em 3 DIAS! Use Pó Royal Para Remover Manchas e Rugas da Pele! (INÉDITA) - YouTube
Good idea for multiple reasons: equisetum (horsetail, snake grass, puzzlegrass) (grow zone grows so quickly and make even the newest newbie of a gardener feel accomplished and happy. equisetum can get out invasive and a container will control it.