I have a "private" blog strictly for blogging notes, tips & tricks. . When I discover new things I'm likely to forget I copy and paste them into my "private" blogging notes blog. Maybe that will work for you.
BTW if you have not been diagnosed with Alzheimers then it's not a good idea to think and talk like you do have it. Medical experts state that short-term and remote memories aren't usually affected by aging. But your recent memory may be affected.
Memory problems that aren't part of normal aging
* Forgetting things much more often than you used to
* Forgetting how to do things you've done many times before
* Trouble learning new things
* Repeating phrases or stories in the same conversation
* Trouble making choices or handling money
* Not being able to keep track of what happens each day
Activities to help you remember
* Keep lists and take notes.
* Follow a routine.
* Make associations (connect things in your mind), such as using landmarks to help you find places.
* Keep a detailed calendar.
* Put important items, such as your keys, in the same place every time.
* Repeat names when you meet new people.
* Do things that keep your mind and body busy.
If you have those problems and undertaking activities to help you remember do work for you then make a doctor's appointment.