I have been training my brain lately! Lumosity.com is a website with games to help you exercise different functions of your brain: speed, memory, attention, flexibility, and problem solving. I think they still have some free games, but I have subscribed so I have planned training sessions and access to more games. (Right now a subscription is less than $5 per month for one account.) The games are fun, and when I train regularly I can really see improvements...in the games and in every day life. Our younger daughter invited us to play a lumberjack game on the Wii tonight, and I won almost every game against her and my husband. It was obvious that my regular training on Lumosity had helped my brain function better! I've been saying things about how I see the difference in little things during every day life, but the game made it clear to others. Our daughter says she wants an account now, so we might need to look into the friends and family plan!
(I don't get anything for promoting Lumosity...I just think it's fun and it works well, so I thought I'd pass it along. If you do check it out, please let me know what you think!)