I want enough money to pay my bills, go out with friends, and have some left over for savings each month. I also want to be a billionaire.
It's easy enough to sort out the reasonable desire from the goofily overreaching one in this case. In others it's harder.
I want to find a sexual partner who fulfills my needs, respects me, and is also a friend. I also want to get laid every night by a wide variety of sexually dominant men with large frames and short hair.
(My sexual preferences make me the inverse Anita Blake.)