tickler file
I also have one at the office and one at home. I consider it essential. One of the key uses for me is repeating tasks. I make a quick notecard with the task (take out trash, enter monthly time tracking) and the repeat frequency (Tickle Mondays, Tickle on the 30th). The file gets checked every morning, and the card sits on my desk until it is done. I don't leave the office or go to bed until the task is done, and the card re-tickled. I never forget anymore.
Another of my favorites is to make a folder for every regular, repeating meeting I have. I then put it in the tickler file for the next scheduled meeting day. As things pop up that I need to bring to the meeting, I just toss them in the folder. The morning of the meeting, my folder is out and ready to go. No more last minute hunting.
About forgetting to check everyday: I made a little piece of cardboard that says "check tickler", and I put it in a place where I have to touch it in the morning (top of keyboard, on keys or wallet). When I see it, I automatically reach for today's tickler folder and empty it. Then I put the piece of cardboard in another place that I will have to touch before I leave (on top of briefcase, space where I lay my wallet). That way I have to move it out of the way and "reload" it for the next day.
One last thing: re-read the PDF in the tips section of this Web site re: tickler files. There are lots of things besides meetings to stick in your folders. Best of luck.