I played piano from age 6-10, I am much older now and I have forgotten most about it. I still own a piano so why shouldn't I use it ? So I started using Rocket Piano and playing Für Elise and other cool songs pretty soon. If you ever decide for a course that is available online rocket piano is the one to go for !
This program really teaches you not only what to practice but also how to practice. All the practice in this program are smarter but no harder and playing a piano becomes a great joy.