The retail landscape is changing fast, and Amazon.com is one of the biggest reasons for the shift. What started as a simple online bookstore has become a global marketplace that sells everything from baby food to industrial equipment.

No matter what you need, chances are you can find it on Amazon.com and get it delivered to you quickly (perhaps because Amazon takes the help of Material Handling Systems for the efficient movement of goods).

But how do you know you are getting the best price? While some prices on Amazon.com are extremely competitive, others are far from rock-bottom deals. If you want to get your money’s worth, you need to do your homework.

Here are 8 Amazon.com saving secrets only the most frugal shoppers know:

Save on staples with the subscribe and save feature

From toilet paper and paper towels to pet food and cereal, there are some things you buy again and again. The subscribe and save feature delivers these frequently purchased items automatically, and saves you money in the process.

Check out the lightning deals

As the name implies, lightning deals are active for a short period of time, but they could save you a lot of money. To find lightning deals and other limited time offers, just click the Today’s Deals link on the Amazon home page (and many interior pages as well). This simple trick could save you a ton of money.

Explore the Amazon Outlet

Like all other outlets, the Amazon Outlet specializes in closeouts and specialty items. Unlike some other outlets, Amazon Outlet features a vast selection, so chances are you can find what you are looking for without leaving the site.

Shop the Amazon Warehouse

Many shoppers do not realize that Amazon sells not only new but “like new” products and that is where the warehouse comes into play. The Amazon Warehouse features a wide selection of products that are in perfect condition -the only catch is that the packaging is damaged in some way. Too will be throwing the packaging away anyway, so why pay extra for it?

Save on baby products with the Amazon Family program

If you have kids or one on the way, be sure to sign up for the Amazon Family program. This free program offers significant savings on baby products, including all those boxes of diapers you will soon be buying.

Clip some online coupons

Even many long-time Amazon fans do not realize that the online retailer offers coupons, but they do. If you are shopping for staples like groceries, drinks and paper products, be sure to check for applicable coupons Just click on the coupon, add the items to your cart and enjoy instant savings on your purchases.

Get your student discount

If you’re a student, be sure to sign up for the Amazon Student program. The free trial provides six months’ worth of benefits, including free two-day shipping and unlimited storage for all your photos. Once the trial period is over, students can sign up for Amazon Prime at half the price.

Get Amazon Deals in the Mail

Don’t have the time to shop for the best deals on Amazon every day? Sign up for a free service like Ninja Deals that sends you the best Amazon Daily Deals right to your email. It’s completely free, you can unsubscribe anytime and they always post the biggest discounted items.

Shopping at Amazon.com carries a host of benefits, from low prices and free delivery to a selection that is second to none. From groceries to musical instruments, you can literally find everything you need on Amazon.com. And now that you know how to get the best prices, there is no reason to go anywhere else.