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I love the Amex Platinum card for widely known perks like airport lounge access and 5x points on flights booked directly with the airline, but the card also comes with some lesser-known benefits that can save you money.

One of those benefits that's available through virtually every Amex card, but isn't the most widely known, is Amex Offers. In this past year alone, I've used offers to save money on purchases from J.Crew, Instacart, and FreshDirect, and to earn bonus points at Amazon.

We're focused here on the rewards and perks that come with each card. These cards won't be worth it if you're paying interest or late fees. When using a credit card, it's important to pay your balance in full each month, make payments on time, and only spend what you can afford to pay.

What are Amex Offers?

The Amex Offers program provides cardholders with discounts at various stores, restaurants, and services, or, if not a discount, then chances to earn extra points.

The interesting part of the program is that each offer is specifically targeted to individual users and each user's individual cards. That means that you and I might get different offers, and I might even see different offers across my several different Amex cards. That adds a real benefit to having multiple Amex cards — even if you just use them to be eligible for more offers, you have a better chance of getting good ones.

One of the appeals of the Amex Offers program is that the offers continuously change. Offers can be for national brands, but are also targeted based on your billing address — for example, I have a few offers for shops and restaurants that have a New York City location.

Current Amex Offers

Here are some of the particularly interesting Amex Offers currently available. Keep in mind that some of may no longer be available, and some are specifically targeted.

Get 5 additional Membership Rewards points per dollar at Amazon , up 2,000 points

, up 2,000 points Spend $75 or more at Boxed , get $20 back.

, get $20 back. Spend $200 or more at Brooklinen , get 4,000 Membership Rewards points.

, get 4,000 Membership Rewards points. Spend $50 or more at WineInsiders.com , get $20 back.

, get $20 back. Spend $50 or more at Winc , get $15 back.

, get $15 back. Spend $50 or more at Sun Basket , get $20 back (up to three times, for a total of $60 back).

, get $20 back (up to three times, for a total of $60 back). Spend $150 or more at Ray-Ban , get 3,000 Membership Rewards points

, get 3,000 Membership Rewards points Spend $125 or more at Spanx , get $25 back.

, get $25 back. Get 10% back on purchases at Starbucks , up to $5.

, up to $5. Spend $50 or more at Teleflora , get $20 back (up to 10 times, for a total of $200 back).

, get $20 back (up to 10 times, for a total of $200 back). Spend $449 or more at GoPro.com, get 9,000 Membership Rewards points.

If you're interested in opening a new Amex card — in addition to getting access to more Amex offers, you can earn a lucrative welcome offer — take a look at our up-to-date list of best Amex cards.

How to find your Amex Offers

Log in to your online Amex account. You'll see icons in the top right for each of the cards you hold. Click which one you want to find offers for. Once you're viewing the correct card, scroll down on the main account page. Keep scrolling and click "View All" to see all available offers on that card. When you find one you want to use, click "Add to Card." If you want to confirm that it's been activated, click the "Added to Card" tab. Repeat for each card you have.

In the Amex app, just click the "Offers" button at the bottom, and follow the same steps.

It's important to note that many offers have expirations dates, so be sure to keep an eye on them to make sure that you use them in time. Also remember that while you'll get some different offers on each card, there will also be some overlap.