Recently I found a site on the internet where you can print off calendars so I printed off a years worth and I keep a few pages on the refrigerator and a pencil nearby. It's really helped me become more organized and remember the dates that I'm to do something. My memory is getting so bad that I forget a lot of stuff.
Here's the site for the printable calendar. You can even put in your own pictures.
http://www.eprintable.com/calendar.php