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.
My friends and I have had this conversation many times. We all brush our teeth twice a day (morning and night), but there usually comes a time when you miss one or the other. So, which one is most beneficial to the health of your teeth? I argue that it's better to brush at night, so you get all the junk off your teeth before you go to sleep. You might have bad breath in the morning, but that's better than giving sugar and plaque eight extra hours to work away on your enamel while you're sleeping.