Amex Offers is a program available through many, if not most American Express credit cards. Different offers exist for cards and some of the offers can be large enough to offset a years annual fee. American Express is constantly updating their offers and some of the best are currently available so be sure to check out you account now.
In order to see your Amex Offers, you will need to sign in and go to the bottom of the account summary page of any American Express card you have. You will see a screen which looks like this:
This is where you’ll see all the offers you’re eligible for. Offers can come as discounts, bonus points, or cash back. All you need to do is click the “Add to Card” button and once you spend the required amount on that American Express card you should see the bonus points or rebate within 90 days of the expiration of the promotion or sooner.
As of this week we have seen some great new offers that give you up to 20% return on hotel stays and even on some jetBlue flights too. While these are the offers available for myself you may see some that offer better or worse value as they are tailored to individuals. Once you click the “Add to Card Button” you will see below that it has been added to the card and it also displays the digits of the card you added it too in case you forget. 
The Terms and Conditions of the Marriott Rewards offer read:
“Get a one-time $60 statement credit by using your enrolled Card to spend a minimum of $300+ on room rate and room charges when you pay for your stay with Marriott from 8/27/2018 to 10/25/2018. See terms for exclusions.
OFFER TERMS
Enrollment limited. Must first add offer to Card and then use same Card to redeem. Only U.S.-issued American Express® Cards are eligible. Limit 1 enrolled Card per Card Member across all American Express offer channels. Your enrollment of an eligible American Express Card for this offer extends only to that Card. Offer valid only at participating Marriott® brands in the U.S and U.S. territories, including: JW Marriott®, Autograph Collection®, Renaissance® Hotels, Marriott Hotels®, Delta Hotels®, Gaylord Hotels®, AC Hotels by Marriott®, Courtyard®, Residence Inn®, SpringHill Suites®, Fairfield Inn by Marriott®, TownePlace Suites® and Moxy® Hotels. Reservations must be made online at Marriott.com, via the Marriott Mobile App or by calling Marriott Worldwide Reservations (888-236-2427). Excludes the following brands: The Ritz-Carlton®, St. Regis®, EDITION®, The Luxury Collection, W® Hotels, Bulgari®, Sheraton®, Marriott Vacation Club®, Le Méridien®, Westin®, Design Hotels™, Tribute Portfolio®, Four Points® by Sheraton, Protea Hotels®, Aloft®, Marriott Executive Apartments®, Element® and Vistana™. Excludes all timeshares, residences, travel packages, and retail store purchases. Offer not valid at international locations outside the U.S and U.S. territories. Excludes gift card purchases. Offer only valid on room rate and room charges. Offer not valid for lodging stays that are paid for before the promotion start date or after the promotion end date. Offer is non-transferable. Limit of 1 statement credit(s) per Card Member. Statement credit will appear on your billing statement within 90 days after 10/25/2018, provided that American Express receives information from the merchant about your qualifying purchase. Statement credit may be reversed if qualifying purchase is cancelled. If American Express does not receive information that identifies your transaction as qualifying for the offer, you will not receive the statement credit. For example, your transaction will not qualify if it is not made directly with the merchant. In addition, in most cases, you may not receive the statement credit if your transaction is made with an electronic wallet or through a third party or if the merchant uses a mobile or wireless card reader to process it. By adding an offer to a Card, you agree that American Express may send you communications about the offer.”
The Terms and Conditions of the Ritz Carlton offer read:
Get a one-time $100 statement credit by using your enrolled Card to spend a minimum of $500+ on room rate and room charges, when you pay for your stay at The Ritz-Carlton from 8/29/2018 to 12/24/2018. See terms for exclusions.
OFFER TERMS
Enrollment limited. Must first add offer to Card and then use same Card to redeem. Only U.S.-issued American Express® Cards are eligible. Limit 1 enrolled Card per Card Member across all American Express offer channels. Your enrollment of an eligible American Express Card for this offer extends only to that Card. Offer valid only at The Ritz-Carlton in the US, Puerto Rico, US Virgin Islands, Canada, Mexico, Aruba, and Cayman Islands. Reservations must be made online at ritzcarlton.com, via the Ritz-Carlton App or by calling 1-800-542-8680. Excludes Ritz-Carlton Santiago and all other international properties, Ritz-Carlton Luxury Vacation Packages, Ritz-Carlton Reserve, Ritz-Carlton Residences, Ritz-Carlton Destination Club properties, EDITION, The Cosmopolitan, and timeshare purchases. Excludes The Ritz-Carlton Shop purchases. Excludes gift card purchases. Please note that hotels, car rental companies, cruise lines do not accept prepaid cards for charges authorized in advance, although prepaid cards may be used to settle the final bill. Check to make sure prepaid cards are accepted before attempting to use your prepaid card to take advantage of offers for these merchants. Offer only valid on room rate and room charges. Offer not valid for lodging stays that are paid for before the promotion start date or after the promotion end date. Offer is non-transferable. Limit of 1 statement credit(s) per Card Member. Statement credit will appear on your billing statement within 90 days after 12/24/2018, provided that American Express receives information from the merchant about your qualifying purchase. Statement credit may be reversed if qualifying purchase is cancelled. If American Express does not receive information that identifies your transaction as qualifying for the offer, you will not receive the statement credit. For example, your transaction will not qualify if it is not made directly with the merchant. In addition, in most cases, you may not receive the statement credit if your transaction is made with an electronic wallet or through a third party or if the merchant uses a mobile or wireless card reader to process it. By adding an offer to a Card, you agree that American Express may send you communications about the offer.
The Terms and Conditions of the JetBlue offer read:
Get a one-time $40 statement credit by using your enrolled Card to spend a minimum of $200+ in one or more transactions purchased directly from JetBlue via jetblue.com by 11/20/2018. See terms for exclusions.
OFFER TERMS
Enrollment limited. Must first add offer to Card and then use same Card to redeem. Only U.S.-issued American Express® Cards are eligible. Limit 1 enrolled Card per Card Member across all American Express offer channels. Your enrollment of an eligible American Express Card for this offer extends only to that Card. Offer valid on airline tickets and vacation packages purchased directly from JetBlue via jetblue.com, mobile app, or by telephone. Purchases such as seat upgrades, baggage fees, travel insurance, and pet fees are included if purchased at time of booking. Excludes JetBlue Cruises, hotel bookings, car rentals, shopjetblue.com purchases, purchase from partner or third party sites linking to/from jetblue.com and on-board flight purchases. Offer is non-transferable. Limit of 1 statement credit(s) per Card Member. Statement credit will appear on your billing statement within 90 days after 11/20/2018, provided that American Express receives information from the merchant about your qualifying purchase. Note that American Express may not receive information about your qualifying purchase from merchant until all items from your qualifying purchase have been provided/shipped by merchant. Statement credit may be reversed if qualifying purchase is returned/cancelled. If American Express does not receive information that identifies your transaction as qualifying for the offer, you will not receive the statement credit. For example, your transaction will not qualify if it is not made directly with the merchant. In addition, in most cases, you may not receive the statement credit if your transaction is made with an electronic wallet or through a third party or if the merchant uses a mobile or wireless card reader to process it. By adding an offer to a Card, you agree that American Express may send you communications about the offer.