I have one of those magnetic boards that goes on the fridge as well as a work diary and a home diary, it might seem like overkill, but if it isn't written down I will forget it.
The magnetic fridge calendar came from BigW and has been the best thing, space to write most appointments and other important events. I check it several times a day.
It didn't save me today though when the diligently written list of all my medications with dose etc was left on the bench when I went to the hospital for screening for the Pallas trial. SIGH!
I took every other bit of paperwork.