I just put them on my lovely calendar which is on my wall as I come into the kitchen!As you will probably be aware by now,I do not bother with using a mobile phone any more,now that I am at home almost all of the time!
I used to write them don but would forget to look at my diary. Then I would put my appointments on my copy holder at work where I would see them every day. However since retiring I use my calender in my tablet which is synched with my mobile so I get reminders. Also for several of my appointments I get SMS reminders so all works well.
I have a big calender next to my computer. I don't often forget anything anyway, but it is there and my whole life is written on it. I check it every day. Family ask me ' What are we doing on this date?' I am forever saying ' Check the calender' if you want to know. It is ingrained in me to check the calender daily, but no one else does. Frustrating when we sometimes get double bookings !!!! It is so easy to check