Southwest Airlines is offering 500 Rapid Rewards points if you sign up for their e-mail subscriptions for a monthly statement and deals newsletters. Relatively easy, and if you’re already signed up, try unsubscribing for a day or two and then signing up again at the link.
If you have a Southwest Airlines-affiliated credit card, you can get another 1,000 points by visiting this page and watching a 2-minute video. You’ll need to enter your RR number and the last 4 digits of your credit card at the end. Thanks for reader Brian for the tip. (Update: May be targeted to specific cardholders.)