How to sanitize your toothbrush?

I am sure everyone has got at least one toothbrush, I know my ex-colleague will likes to brush her teeth after every meal. I do not know that we need to sanitize toothbrush, do you? You can read more about how to sanitize your toothbrush and tell me what you think.

Everyday, I will brush my teeth at least twice a day. How about you? I think a toothbrush usually last for three months.