By Morgan Quinn, Contributor
Visit Amazon.com, and you'll likely find tons of deals on your favorite items -- from electronics, books and toys to clothing, jewelry and home goods. Although you're probably already getting a good deal on an item if you buy it on Amazon, there are still other ways you can save money when shopping at this online retailer. Click through for 22 secret ways you can save money at Amazon.
1. 'Subscribe and Save' on your regular purchases.
Sign up for Amazon's "Subscribe and Save" program to get discounts on thousands of everyday items, like laundry supplies and baby products. Not only will you get free shipping, but you can also save up to 15 percent on your entire order.
2. Sign up, then cancel your free trial of Amazon Prime.
Shoppers can sign up for a 30-day, free Amazon Prime trial, which offers free two-day shipping and special discounts. You can take advantage of the freebies and offers before the trial runs out, and then cancel before the $99 annual fee is automatically charged to your card.
3. Get deals on kid and baby stuff with Amazon Family.
The Amazon Family program is free for Amazon Prime members and offers great deals on baby registry items and essentials such as diapers, wipes and other gear. Once you see how good 20 percent off your diaper order feels, you might never go back to a big-box store.
4. Check out Amazon's 'Today's Deals.'
"Today's Deals" link at the top of most Amazon pages and typically include a "Deal of the Day," "Lightning Deals" and other limited-time offers. You can even keep an eye on deals by clicking "Watch this deal".
5. Find discounts on Amazon's Coupons page.
Amazon shoppers can find coupons on useful items, including cleaning supplies, groceries, household items, supplements and more. Simply click the "Clip Coupon" button, and add the item to your cart.
In addition, for Amazon promo codes, check sites like RetailMeNot and Promocodewatch.com.
6. Shop on Amazon, and donate to your favorite charity.
Instead of donating money to a charity separately, donate through Amazon. With the AmazonSmile program, 0.5 percent of your purchase price is donated to the charitable organization of your choice. Simply visit smile.amazon.com, and shop tens of millions of products that are eligible for donations. There are nearly 1 million charities to choose from, so there's sure to be a cause that will appeal to your heart.
7. Use deal tracker sites.
Prices for items on Amazon can go up and down, so sites like CamelCamelCamel.com will alert you when an item you want drops in price. This website also offers millions of items' pricing histories to help you determine when is the right time to buy.
8. Get an Amazon Student account.
If you're a college student, you can sign up for a free six-month trial of Amazon Student, which offers free two-day shipping, access to unlimited photo storage and other benefits. After your free trial ends, you'll get upgraded to a Amazon Prime membership for half the cost.
9. Watch out for sales taxes.
Although you might be able to avoid sales taxes when shopping other sites, Amazon makes it clear that items sold on its site and shipped to certain states -- such as California, Florida, New York, etc. -- are subject to tax. However, you won't be hit with sales taxes when you purchase gift cards.
10. Shop Amazon through the Ebates portal.
Ebates is an online shopping site that offers cash-back rewards on your purchases. If you shop Amazon through the Ebates portal, you can get between 3 percent and 7 percent back on your purchases, depending on what you buy.
11. Get a price-match refund on a TV.
If you purchased a TV on Amazon but within 30 days noticed another online retailer is selling the same item at a lower price, contact Amazon. Amazon has a price-matching policy for TVs and promises to refund you on an Amazon gift card. And if Amazon lowers its own price within 30 days, you'll get refunded the difference.
12. Use a price comparison browser plugin.
To make sure you're getting the best price on an item, install a price-checking plugin, like PriceBlink.com. It instantly checks prices at other retailers to help you find a better deal.
13. Turn your loose change into Amazon credit.
Instead of letting your loose change sit at the bottom of your purse, bring it to a Coinstar kiosk. After putting in your loose change -- or cash, if the kiosk accepts bills -- you'll get an Amazon gift card.
14. Choose no-rush shipping, and get shopping credits.
Amazon Prime members who choose free no-rush shipping instead of free two-day shipping receive complimentary promotional credits that can be used toward future Amazon.com purchases. Once the item ships, you'll receive an email with the credit's details, including how to redeem it.
15. Check the Amazon Outlet for deep discounts.
Just like with a traditional outlet store, Amazon Outlet offers deep discounts on popular, yet expensive, items. For example, you'll likely find discounted watches from Fendi, Versace and more, and dresses from BCBGeneration, Calvin Klein and more.
16. Trade in your old stuff.
Through its Trade-In program, Amazon offers gift cards to customers who trade in certain items such as tablets, phones, DVDs, CDs, books and video games. You won't get actual cash in-hand, but considering you can buy pretty much anything on Amazon, a gift card is the next best thing.
17. Use MyHabit to purchase designer goods.
Created by Amazon, MyHabit features top designer brands that are up to 70 percent off. The site hosts daily events that start at 9 a.m. and last for 72 hours, and you can buy men's and women's clothing, beauty products, home goods, toys and more.
18. Take advantage of cheap add-on items.
Amazon sells tons of everyday, affordable "add-on" items, including toilet paper, vitamins and toiletries. The only issue is that you have to spend a total of $25 in order to get these deals.
19. See if you can return your item for free.
Some Amazon products are free to return -- you just have to make sure they're eligible by looking for this detail on the product's page. So if you're not happy with your Amazon order, make sure the product is in new or unworn condition and ask for a full refund. Keep in mind Amazon will not refund original shipping fees, though.
20. Use your AARP membership.
If you're an AARP member, you can save money on Kindle books. According to the AARP Member Advantages website, you can get 50 percent off select Kindle e-books and 10 percent off Kindle e-Readers and Kindle Fire. But periodically check the AARP website for other deals.
21. Share your Amazon Prime account.
Amazon Prime members love the free two-day shipping other Amazon customers can't take advantage of. You can share the love with your spouse or kids by visiting the Amazon Household page and inviting household members to share your account. In total, Amazon Household can include up to six members total.
22. Shop Amazon Warehouse deals.
Amazon Warehouse is Amazon's store for open-box items, including TVs, tablets, laptops, home goods and more. It usually features items that have been returned, used, damaged in a warehouse or refurbished. Items are sorted by conditions, so you'll know if the item you purchased is in good condition. You won't be covered by any manufacturer warranties, but you can buy a warrant from Square Trade.
Keep Reading: 10 Things You Didn't Know Amazon Can Do for You
This article, 22 Secret Ways to Save Money at Amazon, originally appeared on GOBankingRates.com.
More from GOBankingRates: