Today, September 14, 2018, is the last day to register your Chase Freedom to earn 5x Ultimate Rewards for the past quarter with Lyft, and at Walgreens and gas stations that you can transfer (circuitously) to Aer Lingus, British Airways, Flying Blue, Iberia, JetBlue, Singapore, Southwest, United, and Virgin Atlantic.

Note that the Freedom is different than the Chase Freedom Unlimited card, which Scott reviewed here.

If you register by today, your Freedom purchases will earn 5 Ultimate Rewards per dollar spent (up to the bonus cap of $1,500 per per quarter) on purchases at gas stations, Walgreens, and

Update 12/6/18: The Chase 5/24 rule now applies to the cards listed below as well.
The general rule of thumb concerning Chase cards is that you won't be approved for them once you've opened five credit cards from ANY bank in the last 24 months.

The Starwood Preferred Guest Luxury Card, which will be the latest addition to the Marriott family credit card portfolio, is actually scheduled to launch August 23, 2018.

Despite the fact that Marriott and the Starwood Preferred Guest programs are merging into one unified loyalty program on August 18, both Marriott and SPG credit cards will continue to be issued for the time being, by Chase and Amex respectively. Both banks have published new terms for all current (and future) Marriott-family credit cards that define who is and isn't eligible for sign up bonuses, as of August 26.
Why These New Rules are Different
Sign up bonus rules are not new to the miles and points community.

We have been watching the merger of Starwood Preferred Guest and Marriott unfold for a long time now.

Tomorrow, June 14, 2018, is the last day to register your Chase Freedom to earn 5x Ultimate Rewards for the past quarter at grocery stores, through Paypal, and through Chas

Chase is really pumping the gas these days.

In March we saw the introduction of the 50k Ultimate Reward sign up bonus offer for the Ink Business Cash Card. Now we've got another lucrative new sign up bonus offer from the bank, this time via a brand new card called the Ink Business Unlimited. The sign up bonus, unlocked by spending $3,000 on the card within three months, is worth $500 in cash back unless you have a Sapphire Preferred, Sapphire Reserve, or Ink Business Preferred.

If you have a Chase Sapphire Reserve Card, you should have already gotten a notice in the mail about a few changes to your benefits effective August 26, 2018. But let's get real. I'm sure many of you throw that mail away without even looking at it. Here are the changes it went over.
1.

Chase has got a new offer for their Sapphire Preferred card with an extra tier of bonus points to entice more spending on the card.

You'll earn 50,000 Ultimate Rewards for spending $4,000 on the card within three months of opening it (this is the standard offer, only difference is there is no extra 5k bonus for adding an authorized user)
You'll earn an additional 30,000 Ultimate Rewards for spending $20,000 on the card within the first year of opening it

The annual fee of $95 is also waived for the first year in this offer

The following news is a rumor and not confirmed, but I feel it's important to share because it's easy to protect yourself against the potential fallout. 

Looks like we *might* be losing our ability to combine Ultimate Rewards between our own accounts as well as between household members.