Get Your Discount!
When you go to checkout for online purchases, there's usually a box to fill out a Promo Code.
You may not have one yet, but I've recently found out that it's not that hard to get one, for a lot of sites. Some of them will give you one if you subscribe. And there are some sites online that have promo codes for a variety of products.
So before you pay for something, just google the product name and "promo codes" to see if you can save some money.
And if it's a subscription product, go for the yearly subscription as soon as you know that you'll use this product for a long time. You'll save a lot of money.