Hmmm, of the things I dream about doing...
Don't laugh too hard, but I would like to climb mount Everest some day.
I am scared of heights, and I have only ever climbed on those indoor thingies.
I watched a documentary about climbing Everest and it was breathtaking. I would love to do it someday, and I figure if I do it, it will be when I have already had kids and raised them. So that way, either I can die knowing I accomplished my goal in life, or die trying. Either way is noble enough for me.

( Assuming I live to 50 ) Everest is an expensive, dangerous climb!
I would like to open an animal shelter too, and live far out in the country. This costs money.
I want to clone myself. This would be expensive, but hey, after it's 18 years old, I could use it for spare parts if it had an "accident".
I want to go into space just long enough so I can see the planet. This could be pretty expensive depending on how soon I wanted to go!
Oh shxt, I just realized, everything I want to do costs money. Well, maybe if I had kids my dreams would be different.