You may use an exemption certificate if, as a purchaser: 1  you intend to resell the property or service; 2  you intend to use the property or service for a purpose that is exempt from sales tax; or. 3  you make purchases as an agent or employee of tax-exempt nonprofit organizations or government entities.
Brush your teeth at least a couple of times a day, once in the morning and most especially before bed. And it is just as important to clean between teeth by using dental floss or an oral irrigator. If you have questions, ask your dentist or hygienist about when would be the best time for you to brush.
Many power brushes have timers and this can help you brush the recommended two minutes. Brushing is not enough; you also need to clean inbetween teeth to thorougly remove plaque. Dental floss is the most recommended product by dental professional, but it requires a high level of dexterity and can be hard to do for many people.