Changes

Refering to problem 1, there are an array of things that can be done to resolve this issue, such as..going through a potential 10-30 in a lifetime instead.

..Refering to problem 2, in line with problem 1, if we reduced the number of toothbrush handles you need to go through for example to 10-30 handles in a lifetime, then the obvious solution would be to change the head, like you can with electric type tooth brushes, reducing the waste and by ensuring you have a fresh and new bristled brushed, which is where the problem usually resides in the toothbrush.

*being updated* To ensure your toothbrush is cleaned properly after each brush and to ensure it has time to dry properly, therefore a specially designed container, where you only need a few of these in your lifetime, which lasts much longer than the traditional brush holders, could prevent the problem and reduce germs from remaining on the brush...