Save big on Arm & Hammer Spinbrush Toothbrushes at CVS! This week, they are on sale for $5.99 each. Use a $3.00/2 printable coupon and $3.00/1 CVS store coupon from CVS.com to pay only $2.99 per toothbrush. Keep in mind that the CVS coupon is limited to one per customer. These are regularly priced at over $10.00.