You can find the link to the ALPA PilotBlast text reminders on the alpa.org website.

Go to the DAL MEC site, then under the Committees Tab select P2P.

When you reach the Pilot to Pilot page, look on the right-hand side for an icon that says "PilotBlast". There you can sign up for the nifty reminders. As others have said, it works really well.

Now you'll have no excuse if you FTB