Well, I have a tendency to make lists constantly, and many of them are about what I want to do before I die.
Sure, it may be a little pretentious, but I also think it's fun. I know many other people do things like this, or websites like 43 things wouldn't exist.

There are many things I want to do before I die, but I can't think right now, so I'll edit this post later on, probably several times.

Spoonfed:

What are somethings you want to do before you die?
EXPLAIN WHY.
Feel free to add more things as you think of them.