Once PSC Points are earned, they can be used on any future orders to take a discount off the order total, regardless of what products you are purcashing. To use PSC Points, first make sure that you are logged into your account. Then, while you are on the checkout page on the right hand side of the screen you will see a slider bar that is titled "Spend your Points". With this slider bar, you can choose how many points you want to use towards the current order. If you want you can check "maximize my discount with points" to recieve the largest discount possible. However, if you want to you can also hold onto your points and use them on another order since they never expire.