I found this to be an excellent resource for myself. Living with ADD is joked about, but those who have the brain activity, might laugh along with you on occasion, but, more often than not, not so funny.  This helps the ADD brain really focus on a task, and utilizes (in my opinion)the downside (short attention-span) as a positive... Repurchased this a third time.... (I think it would make a great IPAD app, so that one could avoid needing a new one every 90 days, but, until then, this works.)