Replace your toothbrush every two to three months, sooner if the ends become worn or splayed. Electric toothbrushes can be more effective and are also easier to use for people with physical difficulties. Disclosing tablets can help you see which parts of your mouth need more attention - they're available from dentists and chemists. Flossing is a good way to clean between your teeth. It removes food particles and plaque from between your teeth and under the gumline, where a toothbrush can't reach.
Mouthwashes are really just a temporary way to freshen breath.
If you seem to use them constantly then visit your dentist for a check-up as you may have an underlying infection. There are also a number of factsheets on this website - click here to search them.