Not much to say here. Just DO IT! http://www.khanacademy.org/ is a wonderful site. If you have a passion for learning or re-learning you will want to bookmark the site. I reconfirmed my ability to add and subtract 🙂 I am going to do every math lesson until I top out (maybe at division).
Free learning – if you have kids – create accounts now. This will help every kid and you’ll be sorry if you don’t also sign up like I have and sharpen you skills.