Are You a Bookmark Person?

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Are you someone who uses a bookmark when you read or are you one of those people who just remember what page you left off on? I have been thinking a lot about this lately and how it kind of crosses over into real life (or RL as Tyler calls it). 

There are the bookmark people; those who bookmark something that they want to remember. This can be something small like what page of a book you are on or something bigger like writing down your baby's milestones or your anniversary. The second type of person is someone who trusts themselves to remember what they are supposed to remember. This could be something like where you parked your car, when you are supposed to change your oil, etc.   

There are definitely pros and cons to both types, and in many ways I think I am a little of each but maybe life would be so much easier as a "full" bookmark person. Imagine not having to think about when you need to change the filters in your house or when you need to schedule your eye exam. It would all be preset in your phone/calendar/PDA/etc. and you would just get a reminder that it was time to do it. The flip side of this is the tedious amount of work that you would have to exert in order to come up with a system that was not confusing and that would be beneficial.

What type of person are you?  Am I missing a type here? Thoughts?