I have always been deeply introverted and have trouble remembering mundane things. One thing that I have found is something I call piggybacking... For instance, I used to never remember to charge my cell phone at night, but I always remembered to set my alarm, at least on the weekdays. So I started using the alarm on my cell phone, and now it's easier to remember to charge my phone (otherwise it is likely to go dead and not wake me up).
The point is find something you are in the habit of doing and tie it to something you want to start remembering to do. For instance, I recently put my vitamins, which I always forget to take, by my toothbrush. Thankfully, I always remember to brush my teeth.