Should i buy a diaper pale to put used tampons in instead of putting them in a trash can (which will smell)?

Anything enclosed: If you wish you can put the tampons in small plastic bags kept in the bathroom, or use any type of waste can with a lid and a plastic lining. Some tampons are flushable in the toilet, but there are some toilet systems that don't allow this. Generally, just be considerate of other people who may use the bathroom and dispose of your tampons (or other items) in an appropriate way.