too much toothpaste

I think I am raising the world's messiest tooth brusher!! Ha!! Every single time Ashtyn brushes his teeth he has foamy toothpaste residue ALL OVER HIS FACE!!!! And I do mean ALL OVER!!!! I guess when it comes down to it I should just be glad he's brushing his teeth at all. I do, however, need to find a way to get all the greenish stains out of my white bath towels...!!!